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Mathematics
Asher Reese
15 November, 15:19
Find the value of f (-4) if f (x) = x2 + 7.
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Warren Hunter
15 November, 18:42
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Just plug in - 4 everywhere you see an x:
f (x) = 2x + 7
f (-4) = 2 (-4) + 7
f (-4) = - 8 + 7
f (-4) = - 1
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