
Concept explainers
To find: Average rate of change.

Answer to Problem 31SGR
Average rate of change =
It means that Average cost of online photos per print will decrease $0.0245 per year.
Explanation of Solution
Given information:
Year =
Average Cost of online photos per print in 2002 =
Year =
Average Cost of online photos per print in 2002 =
Concept:
When two points
Rate of change = Slope =
Therefore, from given information points are
Average rate of change =
Therefore
Average rate of change =
It means that Average cost of online photos per print will decrease $0.0245 per year.
Chapter 3 Solutions
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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