# How do you find the domain and range of #y=2x-3#?

##### 1 Answer

Jun 14, 2017

Graph{y=2x-3 [-10, 10, -5, 5]}

Domain: (-∞,∞)

Range: (-∞,∞)

#### Explanation:

First graph. Then, identify the domain and range.

The domain is all of the possible values of the line, related to the input variable (X-axis).

The range represents all of the possible values of the vertical axis, or the output of the equation (Y-axis).

If you look at the graphed line, you'll probably notice that if it went on *forever*, it would cover every possible value (thus, the infinite values of both the input and output). In other words, you could plug in any number for X and get a corresponding value for Y, and it would be right on that line.