Recognizing Proportional Relationships

Does the graph represent a proportional relationship?

• yes

• no

Does the graph represent a proportional relationship?

• yes

• no

Which equation DOES NOT represent a proportional relationship?

• y = 11x

• y = x/4

• y = 1/2 x

• y = x + 3

Are the following ratios proportional?
3/4, 36/40

• yes

• no

Are the following ratios proportional?
8/10, 28/35

• yes

• no

Are the following ratios proportional?
21/30, 56/80

• yes

• no

What is the constant of proportionality?

• X $3

• X $4

• X $2

• X $9

Is this table Proportional?

• Yes, because the COP is different each time.

• Yes, because the COP is always X9.

• No, because the numbers are all different.

• No, because the COP changes each time.

Is this table proportional or non-proportional?

• Proportional

• Non-Proportional

Find the constant of proportionality on this table of values.

• k=3

• k=1

• k=0

• k=4