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valentinak56 [21]
3 years ago
5

If g(x) is the inverse of f(x)=4x+12 and f(x)=, what is g(x)

Mathematics
2 answers:
Nitella [24]3 years ago
6 0
Hello,
f(x)=y=4x+12

x=4y+12
==>4y=x-12
==>y=x/12- 3

g(x)=x/12 -3


a_sh-v [17]3 years ago
4 0

Answer:

f^{-1}(x)=g(x)=\frac{x-12}{4}

Step-by-step explanation:

The problem tell us that g(x) is the inverse of f(x), where:

f(x)=4x+12

So, we need to find the inverse function of f(x) in order to find g(x)

Let's find the inverse function using the following steps:

1. Replace  f(x) with y:

f(x)=y=4x+12

2. Solve the equation for x:

\frac{y-12}{4} =x

3. Replace every x with a y and replace every y with a x:

y=\frac{x-12}{4}

4. Finally, replace y with f^{-1}(x)

f^{-1}(x)=\frac{x-12}{4}

Therefore:

g(x)=f^{-1}(x)=\frac{x-12}{4}

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Answer:

The Inequality describing the situation is 3r+2s>45.

Step-by-step explanation:

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