How do you find the x and y intercepts for x - 2y = 8?

1 Answer
Alan P.
Dec 4, 2015

To find the x-intercept set y=0 in the equation and solve for x.

To find the y-intercept set x=0 in the equation and solve for y

Explanation:

Using the given equation x-2y=8 as an example:

Setting color(red)(y=0)
color(white)("XXX")x-2xxcolor(red)(0) = 8
color(white)("XXX")x=8
The x-intercept is 8

Setting color(blue)(x=0)
color(white)("XXX")color(blue)(0)-2y=8
color(white)("XXX")-2y=8
color(white)("XXX")y=-4
The y-intercept is (-4)

Related questions
See all questions in Intercepts by Substitution
Impact of this question
1253 views around the world
You can reuse this answer
Creative Commons License