# PSAT Math : How to find x or y intercept

## Example Questions

2 Next →

### Example Question #1 : How To Find X Or Y Intercept

Determine the y-intercept of the following line:

Explanation:

The y-intercept occurs when

### Example Question #2 : How To Find X Or Y Intercept

At what point does the graph  cross the -axis?

Explanation:

The graph crosses the -axis where . So plugging in and solving yields

### Example Question #21 : Arcs And Intercept

Find the x-intercepts of  .

Explanation:

To find the x-intercepts, plug into the equation and solve for .

Don't forget that there are two solutions, both negative and positive!

### Example Question #11 : How To Find X Or Y Intercept

A line with the exquation  passes through the point .  What is the -intercept?

Explanation:

By plugging in the coordinate, we can figure out that .  The -Intercept is when , plugging in 0 for gives us .

### Example Question #11 : How To Find X Or Y Intercept

What are the -intercept(s) of the following line:

Explanation:

We can factor and set  equal to zero to determine the -intercepts.

satisfies this equation.

Therefore our -intercepts are  and .

### Example Question #592 : Sat Mathematics

Which of the following lines does not intersect the line ?

Explanation:

Parallel lines never intersect, so you are looking for a line that has the same slope as the one given. The slope of the given line is –4, and the slope of the line in y = –4x + 5 is –4 as well. Since these two lines have equal slopes, they will run parallel and can never intersect.

### Example Question #22 : How To Find X Or Y Intercept

Where does the line given by  intercept the -axis?

Explanation:

First, put in slope-intercept form.

To find the -intercept, set  and solve for .

### Example Question #11 : X And Y Intercept

Find the y-intercept of .

12

3

14

5

7

7

Explanation:

To find the y-intercept, set x equal to zero and solve for y.

This gives y = 3(0)2 + 2(0) +7 = 7.

### Example Question #11 : How To Find X Or Y Intercept

The slope of a line is . The line passes through . What is the x-intercept?

Explanation:

The equation for a line is:

, or in this case

We can solve for by plugging in the values given

Our line is now

Our x-intercept occurs when , so plugging in and solving for :

2 Next →