10/22/21 Proportionality and Functions Review

In what form is the equation of a proportional relationship?

• y = mx + b

• y = kx

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

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

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

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

y = 4x

• 4x

• 4

• y

Solve the proportion below:

• 42
• 6
• 2
• 28

• A

• B

• C

• D

What is the constant of proportionality for the following graph?

• 100

• 10

• 1/10

Which best describes the graph represented in this table?

•  proportional
• non-proportional

Is the given table a proportional relationship? If so, what is the constant?

• Yes; 1/3
• Yes; 3
• Yes; 5
• No