Question

Select all of the following functions that have a range of y ≥ 0.
absolute value
squaring
identity
cubing
square root

Answer 1

second

Answer 2

squaring function... notice if you square any real number you can think of the result will always be positive (sometimes 0 if you choose 0). So the range of the squaring function is all numbers >= 0

Answer 3

is any other ones?