Question

The graph below shows three functions:


Which function has all real numbers as its domain?

A) Only f(x)
B) Both g(x) and p(x)
C) Both f(x) and g(x)
D) Only p(x)

Answer 1

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