Question

If f(x) = 3x – 5, then what is f–1(x) ?

(the -1 is suppose to be an exponent)

Answer 1

Is it supposed to be an inverse equation?

Answer 2

it means the inverse of f to find inverse you interchange x and y and then make y the subject of the formula

Answer 3

If so it's (x+5)/3=y

Answer 4

the choices are x-5/3....x+3/5....x-3/5....x+5/3

Answer 5

f(x) = 3x-5
y=3x-5
x=3y-5
x+5=3y
x/3 +5/3 =y

Answer 6

which is x+5/3