Question

Which of these functions have a domain of all real numbers?A.) Function f only B.) Function f, g, and hC.) Functions g, and h only D.) Functions f, and g only

Answer 1

Real numbers include the positive and negative integers and fractions (or rational numbers) and also the irrational numbers.

In the given graph of functions, all of the functions have a domain (x values) of all real numbers.

Therefore, the answer is letter B.