MSA Review

What is the constant of proportionality in the equation

y = 4x

• 1

• 4

• x

• y

Which equation shows a linear relationship?

• y = 2x + 5

• y = x²

• y = 7 ÷ x

Mike's Music charges $45 an hour.

Which equation shows this relationship?

• y = 45 + x

• y = 45

• y = 45x

• y = 1x

Tim's Tunes charges $80 plus $25 for each hour.

Which equation shows this relationship?

• y = 105x

• y = 25x

• y = 80x + 25

• y = 80 + 25x

Store C uses the following equation for the cost of renting DVD"s

y = 2.15x

How much does store C charge for renting DVD's?

• $2.15

• $2.00

• $0.15

Is this table linear?

• yes

• no

Write the equation for this table.

• y = 3x

• y = 2 + 3x

• y = 2

• y = 5x + 2

Is this table linear?

• yes

• no

Is this table linear?

• yes

• no

Is this table proportional?

• yes

• no