Functions

Question 1

Which would you figure out first if the question was

fg(x+2)?

Answer 1

First, you would substitute x+2 instead of all the x’s in g(x)=___. Then you would put that into f(x).

Question 2

What are the 4 steps to calculating the inverse of a function?

Answer 2

1) Write the function equal to y: y=x__
2) Swap x with y: x=y__
3) Rearrange the equation to get y: y=_x/
4) Put f(x)^-1 instead of y: f(x)^-1=x/_