Question

What is the range of this function?

A) {y | y > 0}
B) {y | y ≥ 0}
C) {y | y ≥ 3}
D) {y | y ≥ -3}

Answer 1

Greetings.

The range is the set of y-value.

The range starts from the minimum point to maximum point.

Our minimum point starts at 0 and maximum point starts less than infinity.

Therefore the range is 0<=y<+inf

However, we do not often write that, although it is right.

Therefore we write as y≥0

Thus, the answer is B choice.