What is 25x^2+9y^2+100x-125=0 ?

The solution to 25x^2+9y^2+100x-125=0 is Ellipse with (h,k)=(-2,0),a=3,b=5

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25x^2+9y^2+100x-125=0

25 x^{2} + 9 y^{2} + 100 x - 125 = 0

(h, k) = (- 2, 0), a = 3, b = 5

Solution steps

25 x^{2} + 9 y^{2} + 100 x - 125 = 0

Rewrite

25 x^{2} + 9 y^{2} + 100 x - 125 = 0

in the form of the standard ellipse equation

\frac{( x - ( - 2 ) ) ^{2}}{3 ^{2}} + \frac{( y - 0 ) ^{2}}{5 ^{2}} = 1

Therefore ellipse properties are:

(h, k) = (- 2, 0), a = 3, b = 5

b > a

therefore

b

is semi-major axis and

a

is semi-minor axis

Ellipse with center (h, k) = (- 2, 0), b = 5, a = 3

What is 25x^2+9y^2+100x-125=0 ?
The solution to 25x^2+9y^2+100x-125=0 is Ellipse with (h,k)=(-2,0),a=3,b=5