Answer:
It is not a function because the output of 9 repeats.
(1,9) (4,9)
:D
Solution= x=5
Alernative form= 21 x - 105= 0<span />
Answer: (-∞,-1) ∪ (0,+∞)
Step-by-step explanation: The representation fog(x) is a representation of composite function, meaning one depends on the other.
In this case, fog(x) means:
fog(x) = f(g(x))
fog(x) = 





This is the function fog(x).
The domain of a function is all the values the independent variable can assume.
For fog(x), denominator can be zero, so:

If x = 0, the function doesn't exist.



<u>Therefore, the domain of this function is: </u><u>-∞ < -1 or x > 0</u>
He will spend $36.00 on sports equipment.
Answer:
Graph W only. But be careful it is not directly proporotional.