# How do you find the domain and range of y = x^2 + 86?

Jul 18, 2017

There are to constraints.

#### Explanation:

Because there are no constraints the domais is :

$D = x \in \mathbb{R}$

we know that ${x}^{2} \ge 0 \iff {x}^{2} + 86 \ge 86 \iff y \ge 86$

so the range is : $R = \left[86 , + \infty\right)$