Asianswag5000 Asianswag5000

17-08-2016
Mathematics

contestada

Let f(x) = x2 − 8x + 5. Find f(−1). (1 point)

−4

−3

13

14

Respuesta :

dasetka dasetka

17-08-2016

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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