Proportions and Constant of Proportionality

Find the constant of Proportionality:

• 5

• 2.5

• 3

• 1.5

What is the unit rate in this proportional relationship?

• 60 miles/1 hour

• 120 miles/ 2 hours

• 1 mile/ 1 hour

How do you know if a graph is proportional?

• The line will pass through the origin and be curved.

• The line must be straight and pass through the origin.

• The line must pass through any point on the "y- line"

• The line will be positive.

Name the constant of proportionality.

• 20

• 40

• 16

• 35

• a
• b
• c
• d

If the ratio of boys to girls in a class is 3:4, how many boys are there if there are 20 girls?

• 15

• 25

• 10

• 30

• 4

• 6

• 8

• 10

Write the equation for this table.
K=9

• y=9

• y=9x

• y=1/9

How many pieces are there per ounce?

• 5 pieces

• 0.2 pieces

• 50 pieces

• 60 pieces

26 is 5% of what number?

• 3

• 5

• 25.95

• 520