# Equations of Lines from Points

# Two Points Make a Line

Two Points Make a Line

It's easy enough to see that two points make a line when you're looking at a graph, but for the GED, you need to be able to start with the coordinate pairs of two points and write the equation of the line that passes through them.

## LEARN IT

LEARN IT

There's just two things you need to know in order to write the equation of a line in slope-intercept form- *m*, the slope, and, *b*, the y-intercept. Use the slope formula to find *m* then solve for* b*. Finally, plug those values into y=mx+b.

### Watch the Virtual GED Class video below for a complete explanation and tons of worked example problems.

Watch the Virtual GED Class video below for a complete explanation and tons of worked example problems.

## PRACTICE IT

PRACTICE IT

**Beginning:****Equations from Points Beginner****Experienced:****Kuta Equations of Lines Given Points****Advanced:****Equations of Lines from Points Advanced**

## WORKED EXAMPLES

WORKED EXAMPLES

Example 1

Example 2

Example 3

Example 4

Extension 1

Challenge 1