Question

A graph is drawn to represent a relationship between distance, d, and time, t.

A graph with both axes unnumbered. A line decreases from the left to the right.

Which situation could be represented on the graph?

Each point shows the distance, in feet, above the ground of a falling object after t seconds, where the falling speed increases as time increases.
Each point shows the distance, in feet, covered t seconds after a brake is applied, where the speed of the car decreases by a constant factor.
Each point shows the distance, in feet, traveled by an airplane on a runway by gradually increasing speed t seconds after being approved for takeoff.
Each point shows the remaining distance, in feet, to the finish line of a race t seconds after a runner begins the final stretch and runs at a constant spee

Answer 1

Correct answer:
Each point shows the remaining distance, in feet, to the finish line of a race t seconds after a runner begins the final stretch and runs at a constant speed.

Reason: the graph is a straight line decreasing with time, which matches a constant-speed runner (remaining distance decreases linearly). The other situations produce non-linear or increasing-distance behavior.