# What is the domain and range for y = 40 - 8x^2?

Mar 28, 2018

D={x∈R}

R={y∈R | x<=40}

#### Explanation:

$\textcolor{v i o \le t}{\text{Domain}} :$ x can be any real number.

and

$\textcolor{v i o \le t}{\text{Range}} :$ y can be any real number however, it can only be less than or equal to 40.

graph{40-8x^2 [-10, 10, -5, 5]}