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Colt1911 [192]
3 years ago
10

Let f(x) = x2 − 8x + 5. Find f(−1). (1 point) −4 −3 13 14

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
6 0
 f(x) = x² - 8x + 5         Plug in -1 for all of the x-values
f(-1) = (-1)² - 8 (-1) + 5   Square -1
f(-1) = 1 - 8 (-1) + 5        Multiply -8 and -1
f(-1) = 1 + 8 + 5            Add
f(-1) = 14
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