Question

A parabolic function has a maximum value of 13 at x = 4. Find the domain and range of this function.

Answer 1

Since the parabola can take any x-value, we can say that its domain is all real numbers. On the other hand, we know that the maximum value is 13, this means that the range is given by

`y\in(-\infty,13\rbrack`

Therefore, the answers are:

`\begin{gathered} D\text{omain:} \\ x\in(-\infty,\infty) \\ \text{Range:} \\ y\in(-\infty,13\rbrack \end{gathered}`