Applications of Slope and Intercept

1. A battery is charged.

The percentage of the battery's capacity that is charged as a function of time (in minutes) is graphed.

At what rate is the battery charged?

Choose 1 answer:

A. \(20\) percent per minute

B. \(1\) percent per minute

C. \(10\) percent per minute

D. \(2\) percent per minute

2. Suraj took a slice of pizza from the freezer and put it in the oven.

The pizza's temperature (in degrees Celsius) as a function of time (in minutes) is graphed.

What was the pizza's temperature after \(2\) minutes?

3. Archimedes drained the water in his tub.

The amount of water left in the tub (in liters) as a function of time (in minutes) is graphed.

How long did it take each time \(18\) liters of water were drained?

Choose 1 answer:

A. \(\frac {1}{3}\) minute

B. \(\frac {1}{4}\) minute

C. \(\frac {1}{2}\) minute

D. \(1\) minute

4. Karl set out to Alaska in his truck.

The amount of fuel remaining in the truck's tank (in liters) as a function of distance driven (in kilometers) is graphed.

How fast did the truck consume its fuel?

Choose 1 answer:

A. \(60\) liters per kilometer

B. \(0.40\) liters per kilometer

C. \(40\) liters per kilometer

D. \(0.60\) per kilometer