Chapter 2 Review

Are you ready to show work? You will need to show work on the quiz to get full credit!

• Yes

• Absolutely

• I'm so ready

• I've got that paper and that pencil!

What does b represent in y = mx + b?

• y-intercept

• equation

• slope

• point

Which equation has a slope of -1 and a
y-intercept of 3

• y = 3x + 1
• y = 1x + 3
• y = -1x + 3
• y = -3x + 1

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the slope in the equation? 
y = 1/2x + 7

• 7
• 1/2
• -7
• 1/2x

Tags

CCSS.8.EE.B.5

Here are the steps for finding the equation given the slope and one point (click on the image to make it larger). If the slope is -3 and the point is (1, 5), what would be the first step?

• Notice m = -3 and (x, y) = (1, 5)

• Solve for b

• Write the equation

• Divide the values

What would be the second step?

• Plug in what we know to y=mx+b : 5 = -3(1) + b

• Graph the point

• Write the equation

• Solve for b

What would be the third step?

• Plug in what we know

• Graph the point

• Write the equation

• Solve for b

What is b if the line has a slope of -3 and passes through the point (2,0)?

• 6
• -3
• 2
• -6

Which one correctly plugs in the point (5, -7) and the slope -1 into the equation y = mx + b?

• 5 = -1(-7) + b

• -7 = m(-5) -1

• -7 = -1(5) + b

• -5 = -1x - 7

Write an equation that has a slope 7 and passes through the point (2, 17)

• y = 7x + 17
• y = 2x + 7
• y = 7x + 3
• y = 2x - 3

Tags

CCSS.HSA.CED.A.2

CCSS.HSG.GPE.B.5