Question

Please i really need help, i really need this i will give a brainliest to the people that answer correctly

Answer 1

Answer:

Step-by-step explanation:

so to go forward we input x and get out y,   to go backwards ( the inverse) we plug in y and get out x   ,  so just solve the equation for x

f(x) = 8x - 5

remember that f(x) = y

so,

y = 8x - 5

now solve for x

y+5 = 8x

(y+5) / 8 = x

then remember that we want to swap x and y ,

(x+5) / 8 = y

now y = $f^{-1}$(x),  it's kinda confusing.

 $f^{-1}$(x)= $\frac{x+5}{8}$

Answer 2

Answer: B

Hope this helps!