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Marina CMI [18]
4 years ago
7

Which function represents g(x), a reflection of f(x) =4(1/2)x across the x-axis?

Mathematics
2 answers:
Luba_88 [7]4 years ago
4 0

Correct answer is C -I just took the test

gregori [183]4 years ago
3 0

Answer: Hello mate!

we have the function f(x) = 4(1/2)x, and we want to reflex it over the x-axis.

you can see in the graph that the reflex over this axis changes the sign of f(x) in all the points (where f(0) = 4, g(0) = -4, f(1) = 2, g(1) = -2, and so on), then the reflex, g(x) is equal to -f(x)

now we have:

g(x) = -f(x) = - 4(1/2)x

then the right answer is the third option:

g(x) = -4(1/2)x

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