Linear Relationships

At the store Jeremy bought an $18 soccer ball and several cones for $1.75 each. He paid $28.50. Use the equation 18 + 1.75c = 28.50 to determine the number of cones that Jeremy bought.

• 6 cones

• 7 cones

• 8 cones

• 10 cones

What is the rate of change for the following graph?

• 80

• 20

• 40

• 160

What is the constant of proportionality for this table?

• 1/9

• 9

• 8

The linear equation y = 35x + 75 can be used to find the total cost y in dollars that a repairman charges for his services.  Which statement about the repairman's charges is true?

• The repairman charges a flat rate fee of $35 for his services

• The repairman charges a flat rate fee of $110 for his services

• The repairman charges a $35 service fee, plus $75 per hour

• The repairman charges a $75 service fee, plus $35 per hour

Find the rate of change

• 1

• 2

• 11

• Not a constant slope/Non-Linear

Find the rate of change.

• -2 minutes per gallon

• -20 minutes per gallon

• -2 gallons per minute

• -20 gallons per minute

Which company shows a greater rate of change?

• Water's Edge Rafts

• Ryan's Rafts

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

• y

• x

• 14

Write an equation for this situation.

• y=9.75x

• y=19x

• y=19.25x

• y=9.5x

In order for a graph to represent a proportional relationship, the line must be straight and go through the _________.

• y-axis

• origin

• x-axis

• 1st quadrant