SOLUTION: A speed versus time graph is shown below. What is the average rate of change in the speed from 8 seconds to 10 seconds? Please let me know the steps you took to arrive at your answ

Question 1203954: A speed versus time graph is shown below. What is the average rate of change in the speed from 8 seconds to 10 seconds? Please let me know the steps you took to arrive at your answer.
Graph link: https://gyazo.com/0c25dcc85dd8dd5590ea989e1ea608b3
Found 2 solutions by Alan3354, MathLover1:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
The speed changes from 2 to 5 in 2 seconds.
(5-2)/2 = 1.5 m/sec/sec
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
Speed is an example of a rate of change. You may be familiar with the formula

on your graph, you have points ( , ) and ( , )
A line through two specific points on a graph is called a secant line.
In general, the average speed from time to time is the slope of the secant line through the distance graph at and .
the slope of the secant line is:

the average speed from time to time is

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