# Intermediate Geometry : How to find x or y intercept

## Example Questions

### Example Question #21 : How To Find X Or Y Intercept

Find the -intercept for the line .

Explanation:

Start by putting the equation into  form, where  is the slope, and  is the y-intercept.

By definition, the x-intercept is where the line crosses the x-axis. As such, the y-coordinate of this point must be

Plug  in for  in the equation for this line.

Now, solve for .

The x-intercept is found at .

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

Find the x-intercept for the line .

Explanation:

Start by putting the equation into  form, where  is the slope, and  is the y-intercept.

By definition, the x-intercept is where the line crosses the x-axis. As such, the y-coordinate of this point must be

Plug  in for  in the equation for this line.

Now, solve for .

The x-intercept is found at .

### Example Question #23 : How To Find X Or Y Intercept

Find the x-intercept for the line .

Explanation:

Start by putting the equation into  form, where  is the slope, and  is the y-intercept.

By definition, the x-intercept is where the line crosses the x-axis. As such, the y-coordinate of this point must be

Plug  in for  in the equation for this line.

Now, solve for .

The x-intercept is found at .

### Example Question #24 : How To Find X Or Y Intercept

Find the x-intercept for the line .

Explanation:

Start by putting the equation into  form, where  is the slope, and  is the y-intercept.

By definition, the x-intercept is where the line crosses the x-axis. As such, the y-coordinate of this point must be

Plug  in for  in the equation for this line.

Now, solve for .

The x-intercept is found at .

### Example Question #25 : How To Find X Or Y Intercept

Find the x-intercept for the line .

Explanation:

Start by putting the equation into  form, where  is the slope, and  is the y-intercept.

By definition, the x-intercept is where the line crosses the x-axis. As such, the y-coordinate of this point must be

Plug  in for  in the equation for this line.

Now, solve for .

The x-intercept is found at .

### Example Question #26 : How To Find X Or Y Intercept

Find the x-intercept of the line .

Explanation:

Start by putting the equation into  form, where  is the slope, and  is the y-intercept.

By definition, the x-intercept is where the line crosses the x-axis. As such, the y-coordinate of this point must be

Plug  in for  in the equation for this line.

Now, solve for .

The x-intercept is found at .

### Example Question #27 : How To Find X Or Y Intercept

Find the x-intercept of the line .

Explanation:

Start by putting the equation into  form, where  is the slope, and  is the y-intercept.

By definition, the x-intercept is where the line crosses the x-axis. As such, the y-coordinate of this point must be

Plug  in for  in the equation for this line.

Now, solve for .

The x-intercept is found at .

### Example Question #28 : How To Find X Or Y Intercept

Find the x-intercept of the line .

Explanation:

Start by putting the equation into  form, where  is the slope, and  is the y-intercept.

By definition, the x-intercept is where the line crosses the x-axis. As such, the y-coordinate of this point must be

Plug  in for  in the equation for this line.

Now, solve for .

The x-intercept is found at .

### Example Question #29 : How To Find X Or Y Intercept

Find the x-intercept for the line .

Explanation:

Start by putting the equation into  form, where  is the slope, and  is the y-intercept.

By definition, the x-intercept is where the line crosses the x-axis. As such, the y-coordinate of this point must be

Plug  in for  in the equation for this line.

Now, solve for .

The x-intercept is found at .

### Example Question #30 : How To Find X Or Y Intercept

Find the x-intercept for the line .

Explanation:

Start by putting the equation into  form, where  is the slope, and  is the y-intercept.

By definition, the x-intercept is where the line crosses the x-axis. As such, the y-coordinate of this point must be

Plug  in for  in the equation for this line.

Now, solve for .

The x-intercept is found at .