Question

f(x)=x+9, g(y)= square root y
g(f(x))= square root of x+9
wich of the following is the domain of the function g(f(x))?
a. all numbers greater than or equal to 9
b. all numbers less than or equal to -9
c. all numbers less than or equal to 9
d. all numbers greater than or equal t o-9

Answer 1

Back! On sec...

Answer 2

i got d

Answer 3

DOMAIN: x ≥ -9

Answer 4

\[g(f(x)) = \sqrt{x + 9}\]

Answer 5

\[x + 9 = 0\]
subtract 9 from both sides..
\[x = -9\]

Answer 6

\[x ≥ -9\]
This means "All numbers greater than or equal to -9"

Answer 7

thanks for all ur help man the test i was taking was hard and i had 26 attempts out of 2 and i got an a thanks

Answer 8

No probs! :)