document.write( "Question 118250: A parachutist is 800 feet above the ground when she opens her parachute. She then falls at a constant rate of 5 feet per second. How do I write this out as an equation? \n" ); document.write( "
Algebra.Com's Answer #86356 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A parachutist is 800 feet above the ground when she opens her parachute. She then falls at a constant rate of 5 feet per second. How do I write this out as an equation? \n" ); document.write( ": \n" ); document.write( "You want x = time in seconds and y = feet above the ground \n" ); document.write( ": \n" ); document.write( "Since it falls 5 ft every second, we have -5x feet from 800 ft \n" ); document.write( "y = -5x + 800 \n" ); document.write( ": \n" ); document.write( "The graph: \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "You can see that when x = 160 seconds, the height (y) = 0; (160*5 = 800)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |