Question

What are the domain and range of the function below?

A) Domain: (-∞, -5)
Range: (5, ∞)

B) Domain: (-5, -10)
Range: (5, 10)

C). Domain: (-5, 10)
Range: (-10, 5)

D) Domain: (-∞, ∞)
Range: (-∞, ∞)

Answer 1

The domain and range is all real numbers.

Answer: D) Domain: (-∞, ∞); Range: (-∞, ∞)

Answer 2

D) Domain: (-∞, ∞)

Range: (-∞, ∞)

Explanation:

The domain is the input values, or the x values.

We can put in any x values for this function.

Domain : (-∞, ∞)

The range is the output values or the y values.

We can get any output values for this function

Range: (-∞, ∞)