domain is how far left or right the numbers go on the number line for that graph
I answerd this yesterday I think
g(x) starts at -inifinity and ends ata bout x=2, so it doesn't have all real numbers
f(x) starts at about -4 and ends at abot infinity, doesn't have all real number
p(x) is a veritical line, we know that lines have domain as all real number
only p(x)
D
