Question

y=1/4x²-5 determine the range of the function

Answer 1

since x is squared it can never be negative, (2)^2 = 4, (-2)^2 = 4, so the smallest value is when x = 0.
So the range is ?

Answer 2

it can be negative

Answer 3

All real numbers greater than or equal to -5.

Answer 4

??