What is 4x^2+y^2+16x+16y-64=0 ?

The solution to 4x^2+y^2+16x+16y-64=0 is Ellipse with (h,k)=(-2,-8),a=6,b=12

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4x^2+y^2+16x+16y-64=0

4 x^{2} + y^{2} + 16 x + 16 y - 64 = 0

(h, k) = (- 2, - 8), a = 6, b = 12

Solution steps

4 x^{2} + y^{2} + 16 x + 16 y - 64 = 0

Rewrite

4 x^{2} + y^{2} + 16 x + 16 y - 64 = 0

in the form of the standard ellipse equation

\frac{( x - ( - 2 ) ) ^{2}}{6 ^{2}} + \frac{( y - ( - 8 ) ) ^{2}}{1 2 ^{2}} = 1

Therefore ellipse properties are:

(h, k) = (- 2, - 8), a = 6, b = 12

b > a

therefore

b

is semi-major axis and

a

is semi-minor axis

Ellipse with center (h, k) = (- 2, - 8), b = 12, a = 6

What is 4x^2+y^2+16x+16y-64=0 ?
The solution to 4x^2+y^2+16x+16y-64=0 is Ellipse with (h,k)=(-2,-8),a=6,b=12