Question

find the domain of

(x-2)/(-3x+7)

Answer 1

all reals except where -3x+7=0.

Answer 2

thank you so much steve!!

could you help me with this one?

Let
f(x) = square root (x + 2)
and
g(x) = x^2 − 2.
Determine the domain of the composite function. (Enter your answer using interval notation.)

f compose f
_____?

and Find the composite function.

(f compose f)(x) = ___?

Answer 3

f(f) = √(f+2) = √(√(x+2)+2)

Sure you didn't want
f(g) = √(x^2-2+2) = |x|
or g(f) = (x+2)-2 = x
?

Answer 4

no sir, it asks for f(f).

Answer 5

now all I need help on is finding the domain of the f(f) that you just posted.

Answer 6

Thanks, I finally got it.