If it is mentioned that for a curve passing through $(3,4)$, the slope of the curve at any point is the…

If it is mentioned that for a curve passing through $(3,4)$, the slope of the curve at any point is the reciprocal, of twice the ordinate of that point, then that curve is a
  1. Ellipse
  2. Parabola
  3. Hyperbola
  4. Circle

Solution

According to given information the slope of curve at point $(x, y)$ is $ \frac{d y}{d x}=\frac{1}{2 y} \Rightarrow \int 2 y d y=\int d x $ $ \Rightarrow \quad y^2=x+c $ $\because$ Curve (i) passes through point $(3,4)$, so $c=13$. $\therefore$ Required curve $y^2=x+13$ and it is a parabola

Asked in: AP EAMCET 2020 (22 Sep Shift 1)

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