If f(x)=2-x^1/2 and g(x)=x^2-9 , what is the domain of g(x)÷f(x)
∞,2) and (2, ∞)
b) (0,4) and (4, ∞)
∞,2) and (4, ∞)
∞,-2) and (2, ∞)

First let P(x) = g(x)/f(x) = x^2 -  9 / 2 - x^0.5

The domain of the nominator is any value

The domain of the denominator is

Zeros of the denominator

2-x^0.5 = 0

-x^0.5 = -2

x^0.5 = 2

x = 4 

domain of x^0.5 is x >= 0 

(0,4) and (4, inf) 

I'm pretty sure it's b). i try drawing the functions out and b is the one that stands out or isnt a "line"

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.