State the range of the function y = 2x2 is it R: y > 0 OR R: y < 0 OR NEITHER?

Question

State the range of the function y = 2x2
R: y > 0
OR
R: y < 0
OR NEITHER

Answer 1

I presume this is y = 2x². If that is the case, then the answer is NEITHER. What if x = 0? Then y = 2(0)² = 0.

So, the correct answer would have to be:

R: y > or = 0 (y is an element of the real numbers greater than or equal to 0).

Note that if x < 0 or x > 0, y > 0, because (-x)² = [(-1)(x)]² = (-1)²(x)² = (1)(x)² = x², which is positive.

Answer 2

Omg learnt that at like seventh grade... possibly paying interest could help and why ought to somebody else do your homework? next to the reality that all the questions are rediculous uncomplicated. yet basically placed a numer in to your X or Y or in spite of letter and remedy the subject. Then study with given factors and you recognize the respond.