Question

What is the y-intercept? Select the correct choice below and, if necessary, fill in the answer box to complete your choice.

Answer 1

The graph of the function is:

From it we notice that the y-intercept is zero

From the graph we determine that the domaina and range are:

`\begin{gathered} \text{domain}=(-\infty,\infty) \\ \text{range}=\lbrack-16,\infty) \end{gathered}`

The function is decreasing in the interval:

`(-\infty,4)`

And it is increasing in the interval:

`(4,\infty)`