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.
-The axis of the parabola is horizontal.

Question

Quizplus · Accepted Answer

The axis of the parabola is vertical because the equation is in the form $f(x) = ax^2 + bx + c$, where $a$ and $b$ are constants, indicating a vertical parabola opening upwards or downwards depending on the sign of $a$.

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 $f(x)=-4 x^{2}+8 x$