MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

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1 CHAPTER FORM A Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Determine whether the given ordered pair is a solution of the given equation. 1) 3 + = 1; (3, 3) A) Yes B) No Give the -intercepts and -intercepts of the graph. ) A) -intercept: -; -intercept: -7 B) -intercept: 7; -intercept: C) -intercept: -7; -intercept: - D) -intercept: ; -intercept: 7 Find the -intercepts and -intercepts of the graph of the equation. 3) - + = A) -intercept: -; -intercept: -3 B) -intercept: -1; -intercept: C) -intercept: ; -intercept: -1 D) -intercept: -3; -intercept: - Use a graphing calculator to find the graph of the equation. ) f() = ( - )3 + 1 A)

2 B) C) D)

3 Solve the problem. ) Big "D" Sales Month What were the total sales for the first 6 months of 1990? A) $366,000 B) $30,000 C) $6,000 D) $86,000 Find the slope of the line, if it is defined. 6) Through (1, -) and (3, -) A) B) -1 C) 1 D) - Identif whether the slope is positive, negative, zero, or undefined. 7) A) Undefined B) Negative C) Zero D) Positive Find an equation of the the line satisfing the given conditions. 8) Through (0, ); m = 6 7 A) = 8 B) 7-6 = -8 C) = -8 D) -6-7 = 8 9) Through (-, 1); perpendicular to - + = 0 A) - = 0 B) + = -1 C) - - = -1 D) - = -1 19

4 Convert the temperature. ) F = C A) 67.0 C B) C C) 1.8 C D) 1. C Solve the problem. 11) Suppose the sales of a particular brand of appliance satisf the relationship S() = , where S() represents the number of sales in ear, with = 0 corresponding to 198. Find the number of sales in A) 11,80 B) 00 C) 60 D) 11,00 Find the equation of the least squares line. Round values to the nearest hundredth, if necessar. 6 1) A) ' = 3 B) ' = C) ' = D) ' =.8 Solve and graph the inequalit and graph the solution. 13) a + 7 < A) (-, -3] B) (-3, ) C) [-3, ) D) (-, -3) Solve the problem. 1) A rectangular enclosure must have an area of at least 00 d. If 60 d of fencing is to be used, and the width cannot eceed the length, within what limits must the width of the enclosure lie? A) w 1 B) 0 w C) 1 w 0 D) w 0 0

5 Graph the solution of the inequalit. 1) r -. < 3 A) B) C) D) Write the statement using absolute value. 16) is more than 3 units from -9. A) > -6 B) + 9 > 3 C) > -1 D) + 9 < 3 Solve the inequalit and graph the solution. 17) v - 8v A) (-, ] or [6, ) B) [6, ) 6 C) (-, ] 6 D) [, 6] 6 Solve the inequalit. 18) 6 - < A) (-, ) or (6, ) B) (0, ) or (6, ) C) (, 6) D) (6, ) 1

6 19) p + p - 1 > 0 A) (-, -) or (3, ) B) (3, ) C) (-, 3) D) (-, -) Solve the problem. 0) The profit made when t units are sold, t > 0, is given b P = t - 36t Determine the number of units to be sold in order for P = 0 (the break- even point). A) t = -19 or t = -17 B) t > 19 C) t = 36 D) t = 19 or t = 17

7 Answer Ke Testname: CHAPTER FORM A 1) A ) B 3) B ) D ) A 6) B 7) D 8) A 9) B ) C 11) C 1) A 13) D 1) A 1) A 16) B 17) A 18) B 19) A 0) D 3

8 CHAPTER FORM B Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Determine whether the given ordered pair is a solution of the given equation. 1) = 0; (, ) A) No B) Yes Give the -intercepts and -intercepts of the graph. ) A) -intercept: 1; -intercepts: -1, 1 B) -intercept: -1; -intercepts: 1 C) -intercepts: -1, 1; -intercept: -1 D) -intercept: 1; -intercepts: -1

9 Sketch the graph of the equation. 3) = + A) B) C) D) Use a graphing calculator to approimate all real solutions of the equation. ) f() = A) -, -, B), -, C) -,, D) -, -,

10 Solve the problem. ) Craft Bill's Cool Car Sales opened as a used car sales lot in The graph shows the number of cars sold as a function of time. What is the approimate number of cars sold in 199? A) 700 B) 70 C) 30 D) 600 Find the slope and the -intercept of the line. 6) - = - - A) m = - ; b = - B) m = ; b = C) m = - ; b = - D) m = ; b = Identif whether the slope is positive, negative, zero, or undefined. 7) A) Positive B) Negative C) Undefined D) Zero Decide whether the pair of lines is parallel, perpendicular, or neither. 8) The line through (3, -) and (-1, 7) and the line through (6, -13) and (-, 11) A) Parallel B) Neither C) Perpendicular 6

11 Solve the problem. 9) The rate of return of certain investments increases as the risk factor of the investment increases. An investment with a risk factor of has a rate of return of.0%. An investment with a risk factor of 19 has a rate of return of 13.0%. What is the average rate of return per unit of risk? A) 1.7% per unit risk B) 0.79% per unit risk C).1% per unit risk D) 0.7% per unit risk ) On a summer da, the surface water of a lake is at a temperature of Celsius. What is this temperature in Fahrenheit? A) B) 7 C) 77 D) 11) Assume that the sales of a certain appliance dealer are approimated b a linear function. Suppose that sales were $00 in 198 and $6,000 in Let = 0 represent 198. Find the equation giving earl sales S(). A) S() = 0, B) S() = 0,00 + 6,000 C) S() =,0 + 6,000 D) S() =, ) The paired data below consist of the test scores of 6 randoml selected students and the number of hours the studied for the test. B using linear regression, the following function is obtained: = where is number of hours studied and is score on the test. Use this function to predict the score on the test of a student who studies 7 hours. Hours 6 9 Score A) 7.8 B) 79.8 C) 69.8 D) 77.8 Solve and graph the inequalit and graph the solution. 13) - 9 > - 16 A) (-7, ) B) (-, ) C) (-, -) D) (-, -7)

12 Graph the solution of the inequalit. 1) A) B) C) D) Solve the inequalit. 1) Compan A rents copiers for a monthl charge of $00 plus 8 cents per cop. Compan B rents copiers for a monthl charge of $00 plus cents per cop. What is the number of copies above which Compan A's charges are the higher of the two? A),000 copies B) 000 copies C) 0 copies D) 00 copies Write the statement using absolute value. 16) is less than 8 unit(s) from 7. A) - 7 > 8 B) < 1 C) < -1 D) - 7 < 8 Solve the inequalit and graph the solution. 17) t - t A) (-, -] or [7, ) B) [-, 7] - 7 C) [7, ) - 7 D) (-, -] 7-8

13 Solve the inequalit. 18) (b + )(b + )(b - 7) < 0 A) (-, -) or (-, 7) B) (-, -) C) (7, ) D) (-, -) or (7, ) 19) > 0 A) -, - 3 B) -, - 3 C) 0, D) - 3, Solve the problem. 0) The cost of producing t units is C = t + 7t, and the revenue generated from sales is R = t + t. Determine the number of units to be sold in order to generate a profit. A) t > 7 B) t > 8 C) t > 6 D) t > 0 9

14 Answer Ke Testname: CHAPTER FORM B 1) B ) C 3) A ) A ) B 6) B 7) C 8) A 9) D ) C 11) D 1) A 13) A 1) A 1) B 16) D 17) B 18) A 19) D 0) C 30

15 CHAPTER FORM C Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Determine whether the given ordered pair is a solution of the given equation. 1) - = 16; (, ) A) Yes B) No Graph the linear equation. ) + 1 = -6 A) B) C) D) Find the -intercepts and -intercepts of the graph of the equation. 3) = 6 A) -intercept: -; -intercept: - B) -intercept: -; -intercept: - C) -intercept: ; -intercept: -3 D) -intercept: -3; -intercept: 31

16 Use a graphing calculator to find the graph of the equation. ) = A) B) C)

17 D) Solve the problem. ) Big "D" Sales Month Which month in 1989 had the lowest sales? A) Month 6 B) Month C) Month 8 D) Month 3 Find the slope and the -intercept of the line. 6) - = 1 A) m = ; b = 1 B) m = -; b = 3 C) m = ; b = -3 D) m = 0; b = 33

18 Choose one of the four lines graphed which most closel resembles the graph of the given equation. 7) = - + A) B) C) D) Find the - and -intercepts for the equation. Then graph the equation. 8) 8 - = -6 A) (0, - 3 ), (-3, 0) B) (0, - 3 ), (3, 0)

19 Write an equation in standard form for a line passing through the pair of points. 9) (-, -6) and (, -8) A) = -1 B) - 7 = 6 C) + 13 = -1 D) = 6 Convert the temperature. ) 193 C = F A) 0.0 F B) 139. F C) 01. F D) 379. F Compute r, the coefficient of correlation. 11) The test scores of 6 randoml picked students and the number of hours the prepared are as follows: Hours 3 3 Score A) -.1 B).6039 C) D).01 Solve the problem using our calculator. 1) The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands). Use linear regression to find a linear function that predicts the number of products sold as a function of the cost of advertising. Cost Number A) = B) = C) = D) = Solve and graph the inequalit and graph the solution. 13) -8z + 6-9z - A) (-8, ) B) [-11, ) C) (-, -11] D) (-, -8)

20 Solve the problem. 1) A retailer knows that n games can be sold in a month if the price is n dollars per game. If he bus each game for $9, and if he wishes to make a profit of at least $360 per month on sales of this game, how man games must he sell each month? A) 30 n 0 B) 30 n 70 C) 0 n 30 D) 0 n 3 Graph the solution of the inequalit. 1) 8-3 A) B) C) D) Write the statement using absolute value. 16) is within units of 1. A) - 1 B) - 1 < C) - 1 > D) - 1 Solve the inequalit and graph the solution. 17) ( - 9)( + 3) > 0 A) (-, -9) or (3, ) B) (-, -3) or (9, ) -9 3 C) (-3, 9) -3 9 D) (-3, )

21 Solve the inequalit. 18) p3-36p 0 A) (-, -6) or [0, 6] B) (-, -6] or [0, 6] C) (-, -6] or (0, 6) D) (-, -6) or (0, 6) 19) > 0 A) -, 0 B) -, C) -, - D) -, Solve the problem. 0) The profit made when t units are sold, t > 0, is given b P = t - 30t Determine the number of units to be sold in order for P < 0 (a loss is taken). A) t = 11 or t = 19 B) t < 11 or t > 19 C) t > 0 D) 11 < t < 19 37

22 Answer Ke Testname: CHAPTER FORM C 1) B ) B 3) D ) C ) D 6) C 7) D 8) B 9) D ) D 11) B 1) C 13) C 1) A 1) C 16) D 17) B 18) B 19) B 0) D 38

23 CHAPTER FORM D Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Determine whether the given ordered pair is a solution of the given equation. 1) + = 1; (1, -1) 7 A) Yes B) No Graph the linear equation. ) -9 = - 3 A) B) C) D)

24 Give the -intercepts and -intercepts of the graph. 3) A) -intercept: 1 B) -intercept: -1 C) -intercept: -1 D) -intercept: 1 Find the -intercepts and -intercepts of the graph of the equation. ) = + 8 A) -intercept (0, 8), -intercept (8, 0) B) -intercept (8, 0), no -intercepts C) -intercept (8, 0), no -intercepts D) -intercept (0, 8), no -intercepts Use a graphing calculator to find the graph of the equation. ) = A)

25 B) C) D)

26 Solve the problem. 6) The height h in feet of a projectile thrown upward from the roof of a building after time t seconds is shown in the graph below. How high will the projectile be after 3.9 s? h 1 3 t A) 0 ft B) 00 ft C) 0 ft D) 00 ft Write an equation in slope-intercept form of a line satisfing the given conditions. 7) Slope - 3 ; -intercept 9 3 A) = B) = C) = D) = Identif whether the slope is positive, negative, zero, or undefined. 8) A) Positive B) Undefined C) Negative D) Zero

27 Find the - and -intercepts for the equation. Then graph the equation. 9) - 1 = 30 A) (0, -), (-6, 0) B) (0, -), (6, 0) Find an equation of the the line satisfing the given conditions. ) Through (0, ); m = A) = -3 B) = -3 C) = 3 D) 6-7 = 3 11) Through (-3, -1); parallel to -6-7 = 3 A) -7-6 = -1 B) -6-7 = C) = D) -3-7 = 3 Solve the problem. 1) The outdoor temperature rises b 6 Fahrenheit. What is this temperature in Celsius? A) 6 B) 3.3 C) -6 D) ) A biologist recorded snakes on 1 acres in one area and 9 snakes on 31 acres in another area. Let be the number of snakes in acres. Write an equation for the number of snakes. Assume the relationship between the number of snakes and the number of acres is linear (that is, the equation ou produce will be linear). A) = + 1 B) 17 = C) 17 = 7-6 D) 17 = Find the equation of the least squares line. Round values to the nearest hundredth, if necessar ) 3 6 A) ' = B) ' = C) ' = D) ' =.3 3

28 Solve the problem. 1) The equation = can be used to determine the approimate cost, in dollars, of producing items. How man items must be produced so the cost will be no more than $7? A) 0 91, B) 0 91,600 C) > 91,600 D) > 91, Solve the inequalit. 16) Fantastic Flags, Inc., finds that the cost to make flags is C = 9 + 1,, while the revenue produced from them is R = 1 (C and R are in dollars). What is the smallest whole number of flags,, that must be sold for the compan to show a profit? A) B) 6,3 C) 77,0 D) 91 Write the statement using absolute value. 17) s is at least units from. A) s - > B) s - < C) s - D) s - Solve the inequalit and graph the solution. 18) + - A) (-, 1] or [, ) B) [-, -1] 1 C) [1, ] - -1 D) (1, ) 1 1 Solve the inequalit. 19) > 0 A) (-, -9) or (-1, ) B) (-, ) or (-9, ) C) (1, ) or (9, ) D) (-9, )

29 Solve the problem. 0) If a rocket is propelled upward from ground level, its height in meters after t seconds is given b h = -9.8t + 7.8t. During what interval of time will the rocket be higher than 7. m? A) 0 < t < B) < t < 7 C) 8 < t < 11 D) 7 < t < 8

30 Answer Ke Testname: CHAPTER FORM D 1) B ) B 3) D ) D ) C 6) D 7) C 8) A 9) B ) C 11) B 1) D 13) C 1) A 1) B 16) A 17) D 18) B 19) C 0) B 6