Select the correct answer(click the photo)

B.

General Formulas and Concepts:

Order of Operations: BPEMDASEquality Properties

Step-by-step explanation:

Step 1: Define function

f(x) = 8x + 4

Step 2: Prep

Rewrite:                         y = 8x + 4Swap x and y:               x = 8y + 4

Step 3: Find Inverse (Solve for y)

Subtract 4 on both sides:                    x - 4 = 8yDivide both sides by 8:                       (x - 4)/8 = yRewrite:                                                 y = (x - 4)/8Rewrite:                                                f⁻¹(x) = (x - 4)/8

Could you make it more clear?