Linear Functions

If you studied the writing equations unit, you learned how to write equations given two points and given slope and a point.

If you did well with that unit, then studying linear functions will be a great review. If you had trouble with that unit, then you may want to go back and review the following concepts before starting this lesson:

Let's quickly review ordered pairs and function notation before moving on!

Ok.. now that you know how to write an ordered pair from function notation, let's look at an example!

Example 1

Ok, that was pretty easy, right? Yes...now do you see how Math has that spiral effect? You already knew this skill, but it's coming back in a different format!

Next we are going to take it one step further and find the slope of the graph for a linear function. Take a look at this example.

Example 2

Now, let's take it one step further. We are going to find an equation for a linear function. Notice how we use steps from example 2 to start this problem.

Example 3

Is it all coming back to you now? Although this does not complete this lesson, we are going to stop and practice a few problems before moving on!

Practice Problems

Click here to print out a grid.

Answer Key

Problem 1

Problem 2

Problem 3