What is 2x^2+y^2+2y=1 ?

The solution to 2x^2+y^2+2y=1 is Ellipse with (h,k)=(0,-1),a=1,b=sqrt(2)

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2x^2+y^2+2y=1

2 x^{2} + y^{2} + 2 y = 1

(h, k) = (0, - 1), a = 1, b = 2

Solution steps

2 x^{2} + y^{2} + 2 y = 1

Rewrite

2 x^{2} + y^{2} + 2 y = 1

in the form of the standard ellipse equation

\frac{( x - 0 ) ^{2}}{1 ^{2}} + \frac{( y - ( - 1 ) ) ^{2}}{( 2 ) ^{2}} = 1

Therefore ellipse properties are:

(h, k) = (0, - 1), a = 1, b = 2

b > a

therefore

b

is semi-major axis and

a

is semi-minor axis

Ellipse with center (h, k) = (0, - 1), b = 2, a = 1

\frac{x ^{2}}{25} + \frac{( y - 2 ) ^{2}}{4} = 1

y - 3 = - \frac{x}{4 y} (x - 12)

4 x^{2} - 34 y + 13 y^{2} - 36 = 0

5 x^{2} + 2 y^{2} + 12 y = - 8

\frac{( x + 7 ) ^{2}}{16} + \frac{( y + 5 ) ^{2}}{4} = 1

What is 2x^2+y^2+2y=1 ?
The solution to 2x^2+y^2+2y=1 is Ellipse with (h,k)=(0,-1),a=1,b=sqrt(2)