Question

Which statement best applies to the function y = x squared?

a.
The domain only includes numbers greater than or equal to 0.
c.
Both the domain and range only include numbers greater than or equal to 0.
b.
The range only includes numbers greater than or equal to 0.
d.
The domain and range include all real numbers.

Answer 1

b. The range only includes numbers greater than or equal to 0.

Explanation:

Any square of a number will never lead to a negative number

The range of an equation is it's numerical possibilities for y

Since a square of a negative number never leads to a negative y

The answer is therefore, the range can only be zero and above

(otherwise the roots would be imaginary)