Question

What are the steps in finding the inverse function of;

f(x) = 9x -2

Answer 1

f(x)=7

Answer 2

the equation should start with

y = 9x - 2

to find the inverse swap x and y

x = 9y - 2

now make y the subject... to find the inverse...

Answer 3

@campbell_st do I add 2 to both sides or do I multiply 9 by both sides?

Answer 4

ok... adding 2 is great so you have

x + 2 = 9y

so you need the opposite of multiplying by 9

as you want a single y...

so divide both sides by 9

to get the inverse

Answer 5

so x + 2 over 9 = y @campbell_st

Answer 6

thats it