A boy is standing on a flat field and tosses his ball toward a second boy standing at the other end of the field. The path of the ball is a parabola, and the equation of the path is $f(x)=-4 x^{2}+8 x$. Based on this information, answer the question.
-What is the name of the place on the path where the ball is highest from the ground?
A) The $y$-intercept
B) The $x$-intercept
C) The vertex
D) None of the above

Question

Quizplus · Accepted Answer

The highest point on the path of a parabola is called the vertex.

A Boy Is Standing on a Flat Field and Tosses f(x)=−4x2+8xf(x)=-4 x^{2}+8 xf(x)=−4x2+8x

A Boy Is Standing on a Flat Field and Tosses $f(x)=-4 x^{2}+8 x$