Question

8. Dada a função f(x) = 5x + 2, determine f(-2)
a. ( ) -6
b. ( ) -2
c. ( ) -8
d. ( ) 8​

Answer 1

☞ c. ( x ) -8

$f(x) = 5x + 2 \\f( - 2) = 5.( - 2) + 2 \\f( - 2) = - 10+ 2 \\f( - 2) = - 8$

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