# Math Help - Function Notation

1. ## Function Notation

If A(x)= 3x+7

Find: A(2+b) - A(2)
b

I thought the process would be something like this:
3(2+b) +7 -13
b
I don't think i got it right

2. Originally Posted by snakeman11689
If A(x)= 3x+7

Find: A(2+b) - A(2)
b

I thought the process would be something like this:
3(2+b) +7 -13
b
I don't think i got it right
that is correct. now simplify

3. so the answer is zero?

4. Originally Posted by snakeman11689
so the answer is zero?
What happened to your b term in the numerator?

-Dan

5. Originally Posted by topsquark
What happened to your b term in the numerator?

-Dan
lol, nvr mind i got it, thanks anyways