Question

The graph below shows three functions; which function has all real numbers as it’s 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

only f(x) as that is the only equation which has no end in the graph shown.

Answer 2

The is answer is A.
HOPE IT HELSP