How do you find the intercepts for x-y=1?

1 Answer
Alan P.
Jun 23, 2015

The x intercept is 1
The y intercept is (-1)

Explanation:

The value of the x-intercept is the value of x when y=0.
Stated another way, it is the value of x where the line of the equation crosses the x-axis (and all points on the x-axis have y=0).
To find the x-intercept, set any occurrences of y to 0 and solve for x
color(white)("XXXX")x-y = 1
becomes
color(white)("XXXX")x-0 = 1
or
color(white)("XXXX")x = 1

Similarly the value of the y-intercept is the value of y when x=0.
To find the y-intercept, set any occurrences of x to 0 and solve for y.

Related questions
See all questions in Intercepts by Substitution
Impact of this question
5791 views around the world
You can reuse this answer
Creative Commons License