Question

The height of the ball (y) depending on time (x) is given by the following nonlinear function: y = -2x^2 + 7x. How high is the ball 1.5s after being kicked?

Answer 1

height = 6

Explanation:

substitute x = 1.5 into the function

y = - 2(1.5)² + 7(1.5) = - 2(2.25) + 10.5 = - 4.5 + 10.5 = 6