Precalculus Rate of Change

Which statement below accurately represents the graph?

• $100 is earned for each hour worked
• $100 is earned for every 2 hours worked
• $500 is earned for every 8 hours worked
• $200 is earned for every 3 hours worked

Determine the slope and y-intercept from the following equation:   y = 3/2x + 3

• slope: 5   y-intercept:  (0,3) 
• slope: 3/2   y-intercept:  (0,3) 
• slope:  4  y-intercept:  (0,3/2)
• slope: 1/5   y-intercept:  (0,5) 

What is the rate of change for the following graph?

• 80
• 20
• 40
• 160

• Taylor can write 6 words per minute
• Taylor can write 25 words per minute
• Taylor can write 50 words per minute
• Taylor can write 150 words per minute

A climber is on a hike. After 2 hours he is at an altitude of 400 feet. After 6 hours, he is at an altitude of 700 feet. What is the average rate of change? 

• 200
• 150
• 300
• 75

What is the rate of change for the following:
(4,5) (2, 15) 

• -1/5
• 1/5
• -5
• 5

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

What was Brian's rate of change?

• 3/2
• 1.5
• 60
• 30

What was Morgan's rate of change?

• 10
• 20
• 2
• 40