Question

Help pls, confused .

Answer 1

ANSWER

${f}^{ - 1} (x)= \frac{7x + 3}{4}$

EXPLANATION

The given function is

$f(x) = \frac{4x - 3}{7}$

Let

$y = \frac{4x - 3}{7}$

We now interchange x and y to obtain:

$x = \frac{4y - 3}{7}$

Next, we have to make y the subject.

$\frac{x}{1} = \frac{4y - 3}{7}$

Cross multiply:

7x =4y-3

Add 3 to both sides:

7x+3=4y

$y = \frac{7x + 3}{4}$

Therefore the inverse is

${f}^{ - 1} (x)= \frac{7x + 3}{4}$

The last choice is correct.

Answer 2

Answer:

ooo that looks hard maybe you should ask for help

Step-by-step explanation: