Find the slope between the points (-4,-5) and (-7, 12)

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Presentation transcript:

Find the slope between the points (-4,-5) and (-7, 12) Do Now Find the slope between the points (-4,-5) and (-7, 12)

Solve word problems by using the slope formula Slope Word Problems Solve word problems by using the slope formula SWBAT:

What is the average rate of change(slope) in terms of hours? Slope Word Problems A climber is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet. What is the average rate of change(slope) in terms of hours? (6,700) Feet (2,400) Hours

Slope Word Problems Let’s use the slope formula to find the rate of change(slope) in terms of hours (6,700) Feet (2,400) Hours

What does the slope of 75 mean to us? Slope Word Problems So what does the answer mean? What does the slope of 75 mean to us? (6,700) Feet (2,400) The slope means for every hour of travel the climber will go up 75 feet Hours

Slope Word Problems Now that you know the rate of change (slope) in terms of hours you should be able to predict the height of the climber for any amount of time. (6,700) Feet (2,400) Hours

Slope Word Problems Can you predict the height of the climber at 9 hours? (6,700) At 6 hours the climber was at 700 feet. Since the climber will climb 75 feet each hour, you could use the following to solve the problem. Feet (2,400) Hours

Can you predict the height of the climber at 9 hours? Slope Word Problems Can you predict the height of the climber at 9 hours? (6,700) Feet (2,400) Hours

Slope Word Problems Can you predict the height of the climber at 9 hours? (6,700) Feet Doesn’t this look like something you have seen before? (2,400) Hours

Break into groups and begin working on your worksheet Slope Word Problems Break into groups and begin working on your worksheet