Question

need help with finding the domain of a function.. g(x)=x+7 over x^2-16

Answer 1

x cannot = 4

Answer 2

or -4

Answer 3

be careful here. you need to solve
\[x^2-16=0\] and there are two solutions, namely 4 and -4

Answer 4

x can't be 4 or -4

Answer 5

I forgot the +/- symbol

Answer 6

the answer has to be expressd in interval notation

Answer 7

(infinity, -4) (-4,4)(4, infinity)

Answer 8

thank you for your help!

Answer 9

Or like this:
\[x \in (-\infty,-4) \cup (-4,4) \cup (4,\infty)\]

Answer 10

ooh that looks nice!

Answer 11

is that
\[x\in \]

Answer 12

got it on the first try