SOLUTION: Johnny rode his bicycle down a hill. It took him 15 seconds to ride from the top of the hill to the bottom of the hill. The equation h = -3t + 45 models his height, h, in feet, abo

Question 998444: Johnny rode his bicycle down a hill. It took him 15 seconds to ride from the top of the hill to the bottom of the hill. The equation h = -3t + 45 models his height, h, in feet, above the bottom of the hill as a function of the time, t, in seconds, after he started riding down the hill.(1) What is the height of the hill ? explain your answer.(2)How much did jihnny's height above the bottom of the hill decrease each second after he started riding down the hill untill he stopped at the bottom ?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Johnny rode his bicycle down a hill.
It took him 15 seconds to ride from the top of the hill to the bottom of the hill.
The equation h = -3t + 45 models his height, h, in feet, above the bottom of the hill as a function of the time, t, in seconds, after he started riding down the hill.
(1) What is the height of the hill ? explain your answer.
45 ft,
when t = 0
h = -3(0) + 45
h = 45 ft before he starts
:
(2)How much did johnny's height above the bottom of the hill decrease each second after he started riding down the hill until he stopped at the bottom ?
When t = 1: -3(1) = -3 ft for each second
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