X^2=1200y

Solution for X^2=1200y equation:

X^2=1200X

We move all terms to the left:

X^2-(1200X)=0

a = 1; b = -1200; c = 0;
Δ = b2-4ac
Δ = -12002-4·1·0
Δ = 1440000
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1440000}=1200$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-1200)-1200}{2*1}=\frac{0}{2}
=0
$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-1200)+1200}{2*1}=\frac{2400}{2}
=1200
$