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Determine constant change from numerical data
Grade Level
SAT Prep
M066 Determine constant change from numerical data
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A student reviews this table: x-values: 4, 8, 12, 16; y-values: 18, 11, 4, -3. Which claim about constant change is correct?
A
The first differences are all -7, so the data appear linear.
B
Only the first and last y-values matter when checking constant change.
C
Equal spacing in x is enough to prove the data are linear.
D
The first differences are not equal, so the data do not appear linear.
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