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just olya [345]
3 years ago
7

PLEASE HELP VERY URGENT!

Mathematics
1 answer:
Alenkinab [10]3 years ago
3 0

Answer:

Kerri's speed = 50 mile per hour. Therefore option (D) is true.

Step-by-step explanation:

Given the distance-time graph

It is clear from the distance-time graph that:

  • at Time = 1 hour, Distance = 50 miles
  • at Time = 2 hours, Distance = 100 miles

so the two points on the distance-time graph is:

  • (1, 50)
  • (2, 100)

Finding the slope between the points to determine the speed.

Please note that the slope between the points represents the speed or rate of change.

Speed = Rate of change = y₂-y₁ / x₂-x₁

                                         = 100 - 50 / 2-1

                                          = 50 / 1

                                           = 50 miles per hour

Thus, Kerri's speed = 50 mile per hour. Therefore option (D) is true.

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