Direct or Inverse Proportionality

In the equation y = 14x, what is the constant of proportionality?

• y

• x

• 14

Name the constant of proportionality.

• 20

• 40

• 16

• 35

Does the table represent a proportional relationship?

• Yes.

• No.

• A
• B
• C
• D

g is directly proportional to b

Given g=20 when b=4.

Find g when b=7

• 35

• 5

• 15

• 23

The number of pencils sold varies directly as the cost. If 5 pencils cost $0.45, find the cost of 7 pencils.

• Direct Variation

• Inverse Variation

Identify whether the given relation is Direct or Indirect Proportion?
The number of workers on a job and the time to complete the job

• Direct Proportion

• Indirect Proportion 

Identify whether the given relation is Direct or Indirect Proportion?
Area of cultivated land and the crop harvested 

• Director Proportion

• Indirect Proportion

If x and y are in an inverse variation then which of the following is correct?

• x - y = constant

• x + y = constant

• xy = constant 

• x⁄y is constant 

If x and y are in an direct variation then which of the following is correct?

• x - y = constant

• x + y = constant

• xy = constant 

• x⁄y is constant