Linear Relationships

Linear Relationships

By Courtney Case

Let's review the different equations we've looked at so far.

Some text here about the topic of discussion

We talked about how to use this formula to find the slope between any 2 points.

​

You should be able to memorize this for the test! ​

​

​Some text here about the topic of discussion.

Slope formula

Remember, you can use rise/run to find the slope of any graph.

​

​Some text here about the topic of discussion.

slope of a graph

Multiple Choice

What is the slope of this table?

• 15

• 6

• 1/6

• -6

Multiple Choice

What is the slope of this graph?

• 3

• -3

• 4

• 1/3

Remember, "m" is the same as the constant or the unit rate. In this equation, it is the "slope".

The y-intercept determines where the line starts on ​coordinate plane and if it is a proportional relationship or not.

Slope-intercept form

**One of the easiest forms to use when graphing lines and creating a table**

​

​

Slope-intercept form

Multiple Choice

What is the correct equation for the given information?

Slope = 3

Y-Intercept = 2

• y = 2x + 3

• y = 1/2x + 3

• y = 3x - 2

• y = 3x + 2

Open Ended

Write the equation in slope intercept form for the following information.

(2 , 5) and (4 , 13)

​Some text here about the topic of discussion.

point-slope form

point-slope form

Multiple Choice

Write the equation of the line using point-slope if the slope is -3 and it goes through the point (10,5).

• y - 5 = -3 ( x - 10)

• y = -3x + 35

• y + 5 = -3 ( x + 10)

• y = -3x - 35

Multiple Choice

Write the equation of the line using point-slope form if you are given these 2 points.

(-4 , 6) and (2 , -2)

• $$\frac{1}{2}$$  

• $$\frac{3}{4}$$  

• $$\frac{-4}{3}$$  

• 2

Questions before more practice?

Remember, test was moved to tuesday due to elearning. :)