The point $(1,3)$ with respect to the ellipse $4 x^2+9 y^2-16 x-54 y+61=0$ lies

The point $(1,3)$ with respect to the ellipse $4 x^2+9 y^2-16 x-54 y+61=0$ lies
  1. outside the ellipse
  2. on the ellipse
  3. on the minor axis
  4. on the major axis

Solution

Given, equation of ellipse is $ 4 x^2+9 y^2-16 x-54 y+61=0 $ It can be written as, $ \frac{(x-2)^2}{9}+\frac{(y-3)^2}{4}=1 $ Centre of ellipse $(2,3)$. vertex are $(5,3),(-1,3)$ Focus are $(2+\sqrt{5}, 3),(2-\sqrt{5}, 3)$
$\therefore(1,3)$ lies on major axis

Asked in: AP EAMCET 2021 (23 Aug Shift 1)

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