# How do you find the x and y intercept of 3x-3y=9?

Feb 9, 2017

$\text{x-intercept "=3," y-intercept } = - 3$

#### Explanation:

To find the x and y intercepts.

• " let y = 0, in the equation, to obtain x-intercept"

• " let x= 0,in the equation,to obtain y-intercept"

$y = 0 \to 3 x - 0 = 9 \Rightarrow x = \frac{9}{3} = 3 \leftarrow \textcolor{red}{\text{ x-intercept}}$

$x = 0 \to 0 - 3 y = 9 \Rightarrow y = \frac{9}{- 3} = - 3 \leftarrow \textcolor{red}{\text{ y-intercept}}$
graph{x-3 [-10, 10, -5, 5]}