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The function f(x) = -3x - 4 was replaced with f(x + k) resulting in the function g(x) = -3x - 13. What is the value of k? A. -9 B. -3 C. 3 D. 9
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The function f(x) = -3x - 4 was replaced with f(x + k) resulting in the function g(x) = -3x - 13. What is the value of k? A. -9 B. -3 C. 3 D. 9

User ATLUS
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1 Answer

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f(x+k)=-3(x+k)-4
-3x-13=-3x-3k-4

then we need to solve the second equation for k


3k=-4+13=9

then the answer is C.


k=3

User Najam Awan
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5.2k points
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