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pav-90 [236]
3 years ago
11

If f(x) = 2x+4, which of the following is the inverse of f(x)?

Mathematics
1 answer:
creativ13 [48]3 years ago
3 0

Answer:

{f}^{ - 1} (x)=  \frac{x}{2}  - 2

Step-by-step explanation:

The given function is

f(x) = 2x + 4Let

y = 2x + 4

Interchange x and y.

x = 2y + 4

Solve for y,

x - 4 = 2y

Divide both sides by 2

y =  \frac{x}{2}  - 2

Therefore;

{f}^{ - 1} (x)=  \frac{x}{2}  - 2

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The largest number they both share is 3, so that is the GCF

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