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3 years ago

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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