Question 391709: Julie is about to ride down a waterslide at a local waterpark. Julie's path can be modeled by the equation y=-16x^2+64 , where x is the time on the slide measured in minutes and y is the height of the slide measured in feet.
How long is Julie on the waterslide?
After 30 seconds
After 1 minutes
After 2 minutrs
Answer by richard1234(7193)   (Show Source):
You can put this solution on YOUR website! I hope you mean "what is the position after..." instead of "how long is Julie on the slide" since if you're asking how long is she on the waterslide, the answers must be 30 s, 1 min, 2 min
Anyway, to find the position y, just replace each value for x (the time) into the equation for y, and do the arithmetic. You'll have to convert 30 s into .5 min.
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