−7 + 14 = 8 − 6
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Answer:
Step-by-step explanation:
The average rate of change between two points on a graph is ...
average rate of change = slope = rise/run
The rise over the given interval is the function value at x=8 less the function value at x=5. That is, ...
rise = 1 - 10
The run is the difference in the x-values:
run = 8 - 5
Then the average rate of change is ...
average rate of change = rise/run = (1 -10)/(8 -5)
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Here, the points are written as (x, y), so the only pair we're interested in is ...
(5, 10) and (8, 1)