Question

Which graph would best represent the following scenario: a runner gradually increases her speed at the beginning of a race, maintains her speed during the middle part of the race, and then speeds up once again toward the end of the race?

A. 1st Graph
B. 2nd Graph
C. 3rd Graph
D. 4th Graph

Answer 1

Answer:

The answer is A. 1st Graph

Step-by-step explanation:

Answer 2

By studying how the line must behave on each part of the runner's race, we will conclude that the correct graph is the fourth one, so the correct option is D.

Which graph is the one that correctly represents the scenario?

The scenario is the next one:

First, we have the speed increasing linearly, so we should have an increasing line.

Then, the speed is maintained constant for a period of time, so we should have a horizontal line on the middle.

Finally, the speed increases again, so after the horizontal line, we should have another increasing line.

The only option that meets these 3 conditions is the last graph, so the correct option is D.

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