Question 254763: Harvey rides his bike at an average speed of 12 miles in 1 hour, 24 miles in 2 hours, and so on. Let h be the number of hours he rides and d be distance traveled. Write the equetion for the relationship between distance and time in point-slope form.
I need help with this problem!!!! I am in the 8th grade and I am failing my algebra 1 class because I don't know how to do this math and neither do my parents!!! Please help me!!!
Kasey
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Harvey rides his bike at an average speed of 12 miles in 1 hour, 24 miles in 2 hours, and so on. Let h be the number of hours he rides and d be distance traveled. Write the equation for the relationship between distance and time in point-slope form.
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You have three points relating time and distance:
(1,12),(2,24),(3,36)
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The slope for your equation would be (24-12)/(2-1) = 12/1 = 12
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The intercept is the distance you would travel in no time; that would be zero.
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The equation is: distance = 12(time)
d = 12t
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Cheers,
Stan H.
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