Proportional Relationships on a Graph

Write the equation for the relationship.

• y = 10x + 40

• y = 40x + 10

• y = 5x + 40

• y = 10x + 5

What does the initial value mean in this relationship?

• Tickets cost $20 each.

• The cost to get into the theme park is $20.

• You must buy $20 worth of tickets when you enter the theme park.

• You brought $20 with you to spend at the theme park.

What is the rate of change for this relationship?

• 300 calories per hour

• 2400 calories

• -800 calories per hour

• -300 calories per hour

Y = 3X

• Proportional

• Non-proportional

What is the initial value of the graph and is it proportional or non-proportional?

• Proportional, initial value is 8 miles

• Non-proportional, initial value is 8 miles

• Proportional, initial value is 8 hours

• Non-proportional, initial value is 8 hours

What is the rate of change on this graph?

• inch per hour

• 10 inches per hour

• -1 inch per hour

• -3 inches per hour

What is the equation for this graph?

• y = 1/2x + 9

• y = 1/2x + 10

• y = 2x + 10

• y = -2x + 10

What is the initial value for the relationship?

• 40

• 10

• 20

• 5

What is the rate of change in this relationship?

• miles per hour

• miles per hour

• -3 miles per hour

• -1/3 miles per hour

Write an equation for this relationship.

• y = -1/3x + 8

• y = 1/3 x + 8

• y = 3x - 8

• y = -3x + 8