Question

Amanda is practing her dives off the diving board. When she dives into the water the path her body makes and where she resurfaces can be modeled by the equation 0=x^2-8x+7 where x is the number of horizontal feet she travels. Find the number of feet she will travel when she returns to the surface

Answer 1

I think there's missing information in your question. We can solve the quadratic equation for x as shown below. See what you can do with the values of x found.

0 = x^2-8x+7

0 = (x - 7)(x - 1)

x = 7

x = 1