what is function notation?
Using function notation:f(x), g(x), h(x), etc.
If f(x)=2x^2 -3x +2, find: f(0), f(2), f(-4) and f(x+3).

Again, f(x)=2x^2 -3x +2. Also, suppose that g(x)= x-2. Find f(x)*9(x)

Question

what is function notation?
Using function notation:f(x), g(x), h(x), etc.
If f(x)=2x^2 -3x +2, find: f(0), f(2), f(-4) and f(x+3).

Again, f(x)=2x^2 -3x +2. Also, suppose that g(x)= x-2. Find f(x)*9(x)

anikate · Answer

@Calcmathlete

anonymous · Answer

Is that 9 near the end supposed to be a g?

anikate · Answer

yes

anonymous · Answer

And that * sign is a closed dot right? Not a hollow one?

anikate · Answer

its a multiplying symbol

anonymous · Answer

Alright.
For the f(0), f(2), f(-4), and f(x + 3), just plug them in for x and simplify. For instance, f(0) would be:
$$f(0) = 2(0)^2 - 3(0) + 2 \implies 2$$
For the f(x) * g(x) part, just multiply them together.
$$f(x) * g(x) = (2x^2 - 3x + 2)(x - 2)$$

anikate · Answer

oh ok for the first one can you just explain f(x+3)

anonymous · Answer

Same concept.
$$f(x + 3) = 2(x + 3)^2 - 3(x + 3) + 2 \implies?$$

anikate · Answer

ok

anikate · Answer

plz join my naxt chat question thanks! :D

anonymous · Answer

Can you hold on for that one? I have my own question to ask.