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iVinArrow [24]
3 years ago
13

Given the function f(x) = The quantity of 4x minus 2, divided by 3, which of the below expressions is correct

Mathematics
2 answers:
jarptica [38.1K]3 years ago
6 0

Answer:

f^{-1}(x)=\text{The quantity of 3x plus 2, divided by 4}

Step-by-step explanation:

Given,

f(x) = The quantity of 4x minus 2, divided by 3,

\implies f(x) = \frac{4x-2}{3} -----(1)

Since, f^{-1}(x) represents the inverse of f(x),

Also, for finding the inverse of a function f(x) we follow the following steps,

Step 1 : Replace f(x) by y,

Step 2 : Interchange x and y,

Step 3 : Isolate y in the left side of the equation,

Step 4 : Replace y by f^{-1}(x)

Now, from equation (1),

y=\frac{4x-2}{3}

By interchanging x and y,

x=\frac{4y-2}{3}

3x = 4y - 2

-4y = -2 - 3x \implies y = \frac{3x+2}{4}

By replacing y by f^{-1}(x)

f^{-1}(x)=\frac{3x+2}{4}

\implies f^{-1}(x)=\text{The quantity of 3x plus 2, divided by 4}

Drupady [299]3 years ago
5 0

Answer:

f^-1(x) = The quantity of 3x plus 2, divided by 4.

Step-by-step explanation:

Given: f(x) = (4x -2)/3

Which is y = (4x - 2)/3

We have to find the inverse function f^-1 (x)

Replace x by y and y by x, we get

x = (4y - 2)/3

Now find the function y interms of x.

3x = 4y - 2

4y = 3x + 2

y = (3x + 2)/4

f^-1(x) = The quantity of 3x + 2, divided by 4.

Answer is D) f^-1(x) = The quantity of 3x plus 2, divided by 4.

Hope this will helpful.

Thank you.

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