Graphing Linear Equations with y=mx+b

The video tutorial explains how to graph linear equations using the slope-intercept form. It covers three examples: y = 2x - 1, y = 2/3x + 2, and y = -2x + 3. For each equation, the instructor demonstrates how to identify the slope and y-intercept, plot the y-intercept on the graph, and use the slope to find additional points. The tutorial emphasizes the importance of labeling the graph and using a ruler for accuracy.

What is the y-intercept of the equation y=2x-1?

• 2

• 1

• 0

• -1

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

How do you represent a slope of 2 in fraction form?

• 2

• 1/2

• 2/1

• 1

Tags

CCSS.8.EE.B.5

What does a slope of 2/3 indicate about the direction of the line?

• Falls 3 units for every 2 units it runs to the right

• Rises 3 units for every 2 units it runs to the right

• Rises 2 units for every 3 units it runs to the right

• Falls 2 units for every 3 units it runs to the right

Tags

CCSS.8.EE.B.5

How can a positive slope also be represented using negative numbers?

• 2/3

• 3/2

• -2/-3

• -3/-2

Tags

CCSS.8.EE.B.5

What is the y-intercept of the equation y=2/3x+2?

• 2

• -2

• 2/3

• 3/2

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What does a negative slope indicate about the direction of the line?

• The line rises as it moves to the right

• The line falls as it moves to the right

• The line is vertical

• The line is horizontal

Tags

CCSS.8.EE.B.5

How is the slope -1/2 represented in terms of rise over run?

• Down 1, right 2

• Up 2, left 1

• Up 1, left 2

• Down 2, right 1

Tags

CCSS.8.EE.B.5

What is the y-intercept of the equation y=-1/2x+3?

• 1/2

• -3

• -1/2

• 3

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

In the equation y=-1/2x+3, what alternative way can the slope be represented?

• 2 over -1

• -1 over 2

• -2 over 1

• 1 over -2

Tags

CCSS.8.EE.B.5

Why is it important to label your graph with the equation?

• To ensure the instructor knows what graph is being represented

• To make it easier to draw

• To make the graph look complete

• To use up extra space