document.write( "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 ? \n" ); document.write( "

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Johnny rode his bicycle down a hill.
\n" ); document.write( " It took him 15 seconds to ride from the top of the hill to the bottom of the hill.
\n" ); document.write( " 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.
\n" ); document.write( "(1) What is the height of the hill ? explain your answer.
\n" ); document.write( "45 ft,
\n" ); document.write( "when t = 0
\n" ); document.write( "h = -3(0) + 45
\n" ); document.write( "h = 45 ft before he starts
\n" ); document.write( ":
\n" ); document.write( "(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 ?
\n" ); document.write( "When t = 1: -3(1) = -3 ft for each second \n" ); document.write( "

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