Proportional Relationships and Direct Variation

Which of the following represents direct variation?

• y = kx

• y = k/x

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

• y

• x

• 14

• direct variation
• inverse variation
• neither direct nor inverse variation

Name the constant of proportionality.

• 20

• 40

• 16

• 35

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

• Director Proportion

• Indirect Proportion

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 

What is the constant of proportionality in the equation y = 3x?

• 1

• 3

• 9

• -3

Which of the following equations represents a proportional relationship?

• y = 2x - 9

• 2x + 3y = 0

• 3y = 9x

• None of the above

If the value of y varies directly with x, and y = 24 when x = 6, what is the value of y when x = 25?

• 50

• 100

• 150

• 200

Given the direct variation equation y = kx, if y = 3 when x = 10, what is the value of k?

• 0.3

• 3

• 10

• 30