Finding Rates of Change

True or False: "Slope" is just another word for rate of change. We tend to use this word when graphing the relationship between two quantities.

• True

• False

A plane left Chicago at 8:00 AM central time. At 1:00 PM central time, the plane landed in Los Angeles, which is 1500 miles away. What was the average speed of the plane for the trip?

• 300 mph

• 214 mph

• 167 mph

• 620 mph

Every hour, a runner is able to run the same number of miles. After her 3rd hour of running she has gone 15 miles, and after her 5th hour of running she has gone 25 miles. What is the rate (speed) at which she runs?

• 5 mph

• 20 mph

• 0.2 mph

• 0.05 mph

A convenience store opened for the day with 200 bags of Cheetos in stock. Five hours later, there were only 120 bags of Cheetos left.

How many bags of Cheetos was this store selling per hour, on average?

• 16

• 64

• 6

• 75

After 30 baseball games, A-Rod had 25 hits. If after 100 games he had 80 hits, what is his average number of hits per game?

• 27 hits per game

• 0.79 hits per game

• 1.25 hits per game

• 0.83 hits per game

What is Bob's rate of change from 0 seconds to 50 seconds?  BE SURE TO SIMPLIFY!!!

• 100 meters per 50 seconds

• 5 meters per second

• 2 meters per second

• 20 meters per second

What is Mrs. Gordon's rate from 0 to 2 seconds?

• 2.5 feet per second

• 0.4 feet per second

• 5 feet per second

• 0.2 feet per second

What is Jon's rate from 0 to 1 second?

• foot per second

• feet per second

• -4 feet per second

• 3 feet per second

What is Jon's rate from 1 to 2 seconds?

• foot per second

• feet per second

• -4 feet per second

• -6 feet per second

What is Jon's rate from 2 to 3 seconds?

• foot per second

• feet per second

• -4 feet per second

• -6 feet per second