Question

What y equals when x= -4 and when x= 6

Answer 1

Evaluating a function means finding the value of the function that corresponds to a given value of x. To do this, simply replace all the x variables with whatever x has been assigned.

Evaluating our function at x = -4 and x = 6, we have:

`\begin{gathered} y(-4)=(1)/(4)(-4)^2-2=4-2=2 \\ y(6)=(1)/(4)(6)^2-2=(36)/(4)-2=9-2=7 \end{gathered}`

and those are our answers.

`\begin{gathered} x=-4,\:y=2 \\ x=6,\:y=7 \end{gathered}`