Proportional Relationships and Constants of Proportionality

Write an equation to show the proportional relationship in the graph.

• y=¹/₅₂x

• y=104x

• y=52x

• y=¹/₁₀₄x

Write an equation to represent the proportional relationship shown in the table.

• y=12x

• y=4x

• y=¼x

• y=¹²/₃x

Select the true statements.

• graph A is not proportional but B is

• graph B is less steep than graph A

• graph B passes through the origin and A does not

• the constant of proportionality of graph B is less than A

• both are straight lines

The constant of proportionality can be found by finding the __________  _____________.

• unit rate

• ratio rate

• proportion answer

• rational number

Identify the constant of proportionality.

• k = 2x

• k = 2

• k = 4

• none

• a
• b
• c
• d

Identify the constant of proportionality

• k = 1/90

• k = 1/30

• k = 90

• k = 30

What is the constant of proportionality?

• $3

• $4

• $2

• $9

Identify the unit rate (scale factor) in this equation.

• 2x

• 2

• 4

• none

Is this table proportional?

• Yes

• No