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Given f(x) = -4x + 19, what is the value of f(9)?

A) 23
B) 7
C) 55
D) -13

1 Answer

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Final answer:

To find f(9) for the function f(x) = -4x + 19, substitute 9 for x to get -36 + 19, which simplifies to -17. The correct answer is not among the provided options.

Step-by-step explanation:

To find the value of f(9) for the function f(x) = -4x + 19, we need to substitute x with 9 and simplify:

f(9) = -4(9) + 19

f(9) = -36 + 19

f(9) = -17

Therefore, the value of f(9) is -17, which means the correct answer is not listed among the provided options A) 23, B) 7, C) 55, or D) -13.

User Pedrozopayares
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