Question

Let f(x) = x + 7 and g(x) = x – 4. Find f(x) • g(x).

Answer 1

That will be f(g(x))

Answer 2

that means multiplication so multiply...\[(x+7)(x-4)\]

Answer 3

\[f(x)\cdot g(x)\] or\[(f\circ g)(x)\]?

Answer 4

that's a black dot right? not an empty dot? my old eyes dont see well

Answer 5

\(\Large \color{MidnightBlue}{\Rightarrow f(x - 4) \Rightarrow x(x - 4) + 7 }\)

Answer 6

@esbenda.idoris could you please clarify your question?

Answer 7

Let f(x) = x2 – 16. Find F to the negative 1power (x).

Answer 8

that was very specific...

Answer 9

umm... is this a different question?

Answer 10

no is the same one

Answer 11

funny, looks pretty different to me...

Answer 12

\(\Large \color{MidnightBlue}{\Rightarrow f^{-1}(x) = \text{Inverse of } f(x) }\)

Answer 13

yeah that's hw it's look like

Answer 14

\(\Large \color{MidnightBlue}{\Rightarrow x = y^2 - 16 }\)

You must replace the variable by another variable to find the inverse of the function. The value of x you get will be the inverse of f(x)

Answer 15

value of y I think you mean parth, no?

Answer 16

x^2 + 3x -28

Answer 17

these are the choices
1,+/- 4square root of x
2,+/-square root of X +16
3,X square over 16
4, 1 over quantity of Xsquared minus 16