In the Real World Problem-Solving: Using Slope READ-PLAN-DO-CHECK
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- Winifred Boone
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1 --- How far can you walk in an hour, if you walk two miles an hour (2 mph)? The distance you travel changes with the amount of time you travel. You can describe the change in distance compared with the change in time with SLOPE. Example #1: Alison walks 4 miles by 9:00 a.m. She walks 8 miles by 11:00 a.m. If she continues to walk at this rate, how far will she walk by 12:00 noon? 2. Find the. Use the to find your answer. 1. (time, miles) (time, miles) 2. rise = difference in miles = =
2 --- The distance you travel changes with the amount of time you travel. You can describe the change in distance compared with the change in time with SLOPE. Try This #1: During a race, Carolina passed the 3 mile mark at 24 minutes. She passed the five mile mark at 40 minutes. If Carolina continues at the same rate, where will she be at 48 minutes? 2. Find the. Use the to find your answer. 1. (time, miles) (time, miles) 2. rise = difference in miles = =
3 --- The money you earn increases with the amount of time you work. You can describe the increase in earnings compared with the length of time worked with SLOPE. Practice #1: Gracie earns $15.00 by 12 noon. She earns $25.00 by 2 p.m. How much will she earn if she continues at the same rate until 5 p.m.? 2. Find the. Use the to find your answer. 1. (time, $ earned) (time, $ earned) 2. rise = difference in $ earned = =
4 --- The computers you fix increase with the amount of time you work. You can describe the increase in computers fixed compared with the length of time worked with SLOPE. Practice #2: Michael fixes computers. By 1:00 p.m., he has fixed 5 computers. By 3 p.m.. 7 computers are fixed. How many will he fix by 6 p.m.? 2. Find the. Use the to find your answer. 1. (time, # fixed) (time, # fixed) 2. rise = difference in # fixed = =
5 --- The distance you travel changes with the amount of time you travel. You can describe the change in distance compared with the change in time with SLOPE. Practice #3: A bus leaves the city at 6:00 a.m. It travels 150 miles by 9 a.m. How far will it travel by 12 noon? 2. Find the. Use the to find your answer. 1. (time, miles) (time, miles) 2. rise = difference in miles = =
6 --- The temperature increases/decreases throughout the day. You can describe the change in temperature compared with the change in time with SLOPE. Practice #4: The temperature at 6 a.m. was 73 degrees. At 11:00 a.m., the temperature was 83 degrees. If the temperature rises at the same rate, what will it be at noon? 2. Find the. Use the to find your answer. 1. (time, temp.) (time, temp.) 2. rise = difference in temp. = =
7 --- The amount of bushels(of fruit) one picks increases with the amount of time one picks. You can describe the change in bushels compared with the change in time with SLOPE. Practice #5: At 1 p.m., Mr. Fay has already picked 15 bushels of peaches. By 4 p.m., he had picked a total of 39 bushels. Find out how many bushels Mr. Fay will have picked by 5 p.m. when working at the same rate. 2. Find the. Use the to find your answer. 1. (time, # bush.) (time, #bush.) 2. rise = difference in bushels = =
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