Writing Equations in Slope-Intercept Form from Graphs

The video tutorial explains how to write the equation of a graphed line in slope-intercept form, y = mx + b. It covers identifying the slope using rise over run and finding the y-intercept where the line crosses the y-axis. The tutorial includes several examples, demonstrating both positive and negative slopes, and addresses special cases where the y-axis counts by different increments.

What is the general form of the slope-intercept equation?

• y = b - mx

• y = m + bx

• y = mx - b

• y = mx + b

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

How do you find the slope of a graphed line?

• By counting the rise over the run

• By finding the x-intercept

• By counting the run over the rise

• By finding the y-intercept

Tags

CCSS.8.EE.B.5

In Example 1, what is the slope of the line?

• 2

• 1

• 3

• 4

Tags

CCSS.8.EE.B.5

In Example 1, what is the y-intercept of the line?

• 1

• 3

• 4

• 2

In Example 2, what is the slope of the line?

• 2/3

• 3/2

• -2/3

• -3/2

Tags

CCSS.8.EE.B.5

In Example 2, what is the y-intercept of the line?

• -2

• -3

• -4

• -5

In Example 3, what is the slope of the line?

• -7

• -6

• -5

• -4

Tags

CCSS.8.EE.B.5

In Example 4, what is the y-intercept of the line?

• -4

• -5

• -6

• -7

In Example 5, what is the slope of the line?

• -5

• -2

• -3

• -4

Tags

CCSS.8.EE.B.5

In Example 6, what is the y-intercept of the line?

• -10

• -15

• -20

• -25