Which graph best represents the relationship between the temperature of a glass of water and the amount of time that passes after ice is added to the water?

A.
Incorrect. This graph represents a direct relationship. As the time passes, the temperature of the water also increases.

B.
Incorrect. This graph shows as the time passes, the temperature of the water remains constant.

C.
Incorrect. This graph shows as the time passes, the temperature decreases, then increases.

D.
Correct! As time passes, the temperature of the water decreases, then remains constant.

Which graph best represents the following relationship? Francisco walked away from the house, then turned and walked back toward the house.

A.
Incorrect. This graph shows as time passes, Francisco’s distance from the house decreases, then increases.

B.
Correct! As time passes, Francisco’s distance from the house increases, then decreases.

C.
Incorrect. This graph shows Francisco’s distance from the house remains constant.

D.
Incorrect. This graph shows as time passes, Francisco’s distance from the house decreases, then increases.

The graphs below show the relationship between the distance traveled by 3 test cars and the volume of gas in the cars’ gas tanks.

If each test car’s gas tank was filled to maximum capacity prior to being driven, which of the graphs supports the following statement?

The Freestone has the largest gas tank; however, the R2700 traveled the greatest distance.

A.
Incorrect. The line segment with the largest y-intercept corresponds to the car with the largest gas tank. The line segment with the largest x-intercept corresponds to the car which traveled the greatest distance.

B.
Incorrect. The line segment with the largest y-intercept corresponds to the car with the largest gas tank. The line segment with the largest x-intercept corresponds to the car which traveled the greatest distance.

C.
Correct! The line segment with the largest y-intercept corresponds to the car with the largest gas tank, the Freestone. The line segment with the largest x-intercept corresponds to the car which traveled the greatest distance, the R2700.

D.
Incorrect. The line segment with the largest y-intercept corresponds to the car with the largest gas tank. The line segment with the largest x-intercept corresponds to the car which traveled the greatest distance.