2.4 Practice

Which of the following is an equation that represent a proportional relationship?

• y=kx

• y=kx-1

• y=k/x

• y=k

Which relation from the following can help you find the constant of proportionality?

• k = y/x

• k=xy

• k=x

• k=y

The constant in the following table is

• 1/7

• 7

• 8

• 5

x =

• 7

• 6

• 8

• 4

A car travels 3 km every 2 minutes, what is the constant of proportionality that represents distance per minute?

• 2

• 3

• 2/3

• 3/2

• y=.02x

• y=15x

• y=x

• y=19x

What would be the height of 10 DVD cases?

• 247

• 230

• 190

• 19