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Grade 8
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Understanding Slope as Rate of Change
Worksheet
Grade Level
Grade 8
8.47 Understanding Slope as Rate of Change
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Mia claims that the slope of x-values -2, 2, 6, 10; y-values -13/2, 5/2, 23/2, 41/2 is 9. Which explanation shows the mistake?
A
The slope is 4/9 = 4/9
B
The student used only the change in y. The slope is 9/4 = 9/4
C
The student is correct because slope is always just the change in y, so the slope is 9
D
The slope is the first y-value, which is -13/2
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