equation: 4x - 2y^2 = 9
would the equation be:
y= +/- sqrt 4.5 + 2x
if it is, then "y" is not a function of "x" right?
thanks for your help.
2006-09-27 08:46:34 · 4 answers · asked by shih rips 6 in Science & Mathematics ➔ Mathematics
First of all, this isn't quadratic because there is no parabola. It's just a plain old dependent function. But if you wanted to solve for y as a function of x then:
4x - 2y^2 = 9
2x - y^2 = 9/2
2x - 4.5 = y^2
y(x) = +/- sqrt(2x - 4.5)
2006-09-27 08:56:59 · answer #1 · answered by ohmneo 3 · 0⤊ 0⤋
y = +/- sqrt(2x-4.5)
y IS a function of x
2006-09-27 15:49:46 · answer #2 · answered by ? 7 · 0⤊ 0⤋
y ^2= 2x - 4.5
y is a function of x
2006-09-27 15:51:57 · answer #3 · answered by Liquid 3 · 0⤊ 0⤋
right... y is not a function of x because one x can give multiple y's
2006-09-27 15:49:42 · answer #4 · answered by kb27787 2 · 0⤊ 0⤋