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)

correct answer is c. just did it

step-by-step explanation:

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)