Proportionality Review

In what form is the equation of a proportional relationship?

• y = mx + b

• y = kx

Tags

CCSS.7.RP.A.2D

How do you find the constant of proportionality for a graph?

• Pick a point on the line and use the formula x/y

• Pick a point on the line and use the formula y/x

Tags

CCSS.7.RP.A.2B

The constant of proportionality can also be called the...

• Equation of a proportional relationship

• Unit Rate

• Origin

• Y-intercept

Tags

CCSS.7.RP.A.2B

Does this graph show a proportional relationship?

• Yes, because it is straight

• Yes, because it goes through the origin

• Yes, because it is straight and goes through the origin

• No, it is not

Tags

CCSS.7.RP.A.2D

Does this graph show a proportional relationship?

• Yes, because it is a straight line

• Yes, because it goes through the origin

• Yes, because it is a straight line and goes through the origin

• No, it is not

Tags

CCSS.7.RP.A.2D

Does this equation represent a proportional relationship?

y = 2 + 7x

• Yes, because it has a constant of proportionality

• Yes, because it will be a straight line

• No, because it will not be a straight line

• No, because it will not go through the origin

Tags

CCSS.7.RP.A.2D

Which of the following is the constant of proportionality for this equation?

y = 4x

• 4x

• 4

• y

Tags

CCSS.7.RP.A.2B

Which equation matches the graph?

• y = 7x
• y = 42x
• y = 6x
• y = 2x

Tags

CCSS.5.OA.B.3

What makes a graph proportional?

• Straight Line
• The line goes through (0,0)
• Curvy line
• Straight line and passes through (0,0)

Tags

CCSS.8.EE.B.5

Solve the proportion below:

• 42
• 6
• 2
• 28

Tags

CCSS.7.RP.A.2B