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Law Incorporation [45]
3 years ago
14

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

Mathematics
2 answers:
Anna71 [15]3 years ago
7 0

Answer:

g(x)=-4(2)^{-x}

Step-by-step explanation:

Given: The graph of f(x) (blue color)

f(x) reflection across x-axis to get g(x).

Using to find the equation of f(x)

The graph looks like a exponential decay whose y-intercept (0,4) and passing point (1,2).

f(x)=4(2)^{-x}

Reflection across x-axis

y\rightarrow -y

g(x)=-f(x)

The function g(x) represents by

g(x)=-4(2)^{-x}

Hence, The g(x)=-4(2)^{-x} is reflection of f(x) across x-axis.

fiasKO [112]3 years ago
3 0

Answer:

Option C g(x) = -4

Step-by-step explanation:

In the question a function f(x) =4 is given and we are required to tell the reflection g(x) of the given function.

The rule of reflection for a function says that:

f(x) -> - f(x)

So, in our case the value of function is f(x) = 4, after reflection the value across the x-axis the value will become negative i.e -4,

so the required function g(x) = - 4

Hence Option C g(x) = -4 is correct option.

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