Question

What is the range of the function below? y = x

A. All real numbers
B. All whole numbers
C. All real numbers less than or equal to 1
D. All real numbers greater than or equal to 1​

Answer 1

Option (A)

Explanation:

Domain of a function is defined by the x-values (input values) on the graph.

Range of a function is defined by the y-values (output values).

For a function having equation as,

y = x

Since, the given function is defined for all real numbers.

Domain of the function: x ∈ R

Range of the function: y ∈ R

Therefore, option (A) will be the answer.