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Math and Arithmetic
Algebra
Geometry

How do you find the x and y intercept?

Answer

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Wiki User
April 25, 2012 4:36PM

It depends on whether you are doing the question graphically or algebraically.

Working from a graph:

The x-intercepts are the points where the graph cuts the x-axis. The y-coordinates of these points are 0.

The y-intercepts are the points where the graph cuts the y-axis. The x-coordinates of these points are 0. A function cannot do this since then it would be a one-to-many mapping which is NOT a function. However, some equations (eg a circle) may give rise to more than one y-intercepts.

Working from an equation:

Let y = 0 and find the values of x that satisfy the equation. These are the x-intercepts.

Let x = 0 and find the values of y that satisfy the equation. These are the y-intercepts.