Question

y^2 = -x, y = ?

Should it be y = square root of (-x)?
or y = - square root of (x)?

Answer 1

y = plus or minus the square root of (-x)

Answer 2

wait... i substituted x=1 for square root of (-x) just in case on the calculator, and it gives me error...

Answer 3

x has to be less than or equal to 0. There is no solution if x is greater than 0 (for example, you can't make x =1)

Answer 4

oh.. i see. thanks! :)