Solve for y
y=\frac{4}{9}-x^{2}
Solve for x (complex solution)
x=-\frac{\sqrt{4-9y}}{3}
x=\frac{\sqrt{4-9y}}{3}
Solve for x
x=\frac{\sqrt{4-9y}}{3}
x=-\frac{\sqrt{4-9y}}{3}\text{, }y\leq \frac{4}{9}
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9y=4-9x^{2}
Subtract 9x^{2} from both sides.
\frac{9y}{9}=\frac{4-9x^{2}}{9}
Divide both sides by 9.
y=\frac{4-9x^{2}}{9}
Dividing by 9 undoes the multiplication by 9.
y=\frac{4}{9}-x^{2}
Divide -9x^{2}+4 by 9.
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