What is ((x-1)^2)/4+((y+1)^2)/9 =1 ?

The solution to ((x-1)^2)/4+((y+1)^2)/9 =1 is Ellipse with (h,k)=(1,-1),a=2,b=3

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((x-1)^2)/4+((y+1)^2)/9 =1

\frac{( x - 1 ) ^{2}}{4} + \frac{( y + 1 ) ^{2}}{9} = 1

(h, k) = (1, - 1), a = 2, b = 3

Solution steps

\frac{( x - 1 ) ^{2}}{4} + \frac{( y + 1 ) ^{2}}{9} = 1

Rewrite

\frac{( x - 1 ) ^{2}}{4} + \frac{( y + 1 ) ^{2}}{9} = 1

in the form of the standard ellipse equation

\frac{( x - 1 ) ^{2}}{2 ^{2}} + \frac{( y - ( - 1 ) ) ^{2}}{3 ^{2}} = 1

Therefore ellipse properties are:

(h, k) = (1, - 1), a = 2, b = 3

b > a

therefore

b

is semi-major axis and

a

is semi-minor axis

Ellipse with center (h, k) = (1, - 1), b = 3, a = 2

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

9 x^{2} - 72 x + y^{2} + 10 y + 160 = 0

\frac{x ^{2}}{3} + \frac{y ^{2}}{6} = 1

(x - 5)^{2} + \frac{y ^{2}}{25} = 1

\frac{( x - 2 ) ^{2}}{3 ^{2}} + \frac{( y - 1 ) ^{2}}{2 ^{2}} = 1

What is ((x-1)^2)/4+((y+1)^2)/9 =1 ?
The solution to ((x-1)^2)/4+((y+1)^2)/9 =1 is Ellipse with (h,k)=(1,-1),a=2,b=3