Question

given f(x)=1/x-4 abd g(x)=4-3x^2 find:
g(-2)
f o g (x) g(x^2+1)
f^-1(x)

Answer 1

g(x) = 4-3x^2
g(-2) = 4-3(-2)^2

Answer 2

f o g(x) = f(g(x) = 1/((4-3x^2)-4)

Answer 3

g(x^2-1) = 4-3(x^2-1)^2

Answer 4

By the way, I haven't simplified any of those. You'll have to do that yourself. But at least I got you started

Answer 5

yes I dont understand the second please explain

Answer 6

lalaly, I see you

Answer 7

lol everyone does ^_^

Answer 8

Just press the I believe button:

f o g(x) = f(g(x)) means that the entire equation that represents g(x) is a function of f(x). In other words, the whatever the equation for g(x) is, put that in the "x" portion of the equation for f(x), then simplify

Answer 9

That's the best way I can describe it

Answer 10

do I expand the brackects

Answer 11

To simplify, yes

Answer 12

complicated i can not

Answer 13

can you help please