Slope-Intercept Form and Linear Equations

The video tutorial reviews the concepts of slope and y-intercept in linear equations, focusing on the slope-intercept form y = mx + b. It provides examples of graphing linear equations, including converting equations to slope-intercept form and plotting them on a graph. The tutorial emphasizes understanding slope as a fraction and the importance of accurately graphing using a straight edge.

What is the slope-intercept form of a linear equation?

• y = b + mx

• y = mx + b

• b = mx + y

• x = my + b

In the equation y = 3x - 7, what is the slope?

• -3

• 7

• -7

• 3

In the equation y = 3x - 7, what is the y-intercept?

• 3

• -3

• -7

• 7

How do you convert y + 2.25x = 3 to slope-intercept form?

• Subtract 2.25x from both sides

• Divide both sides by 2.25

• Add 2.25x to both sides

• Multiply both sides by 2.25

What is the slope of the equation y = -9/4x + 3?

• 9/4

• -9/4

• -3

• 3

What is the y-intercept of the equation y = -9/4x + 3?

• -9/4

• 9/4

• 3

• -3

In the equation y - 5 = 3/4x, what is the first step to isolate y?

• Subtract 5 from both sides

• Add 5 to both sides

• Divide both sides by 5

• Multiply both sides by 5

What is the slope of the equation y = 3/4x + 5?

• 3/4

• -3/4

• -5

• 5

What is the y-intercept of the equation y = 3/4x + 5?

• 5

• -5

• -3/4

• 3/4

Which of the following is NOT a step in graphing a linear equation in slope-intercept form?

• Plot the y-intercept on the graph

• Identify the y-intercept

• Identify the slope

• Multiply the slope by the y-intercept