A normal is drawn at a point P on a curve y=f(x), meeting the x−axis and the y−axis at points A and B respectively. Let 1OA+1OB=1, where O is the origin. If the equation of the curve passes through (2,3), then the number of points of intersection of y=f(x) with y−axis is

A normal is drawn at a point P on a curve y=f(x), meeting the x−axis

1.	A normal is drawn at a point P on a curve y=f(x), meeting the x−axis and the y−axis at points A and B respectively. Let 1OA+1OB=1, where O is the origin. If the equation of the curve passes through (2,3), then the number of points of intersection of y=f(x) with y−axis is
Answer» A normal is drawn at a point $P$ on a curve $y = f (x)$ , meeting the $x -$ axis and the $y -$ axis at points $A$ and $B$ respectively. Let $\frac{1}{O A} + \frac{1}{O B} = 1$ , where $O$ is the origin. If the equation of the curve passes through $(2, 3)$ , then the number of points of intersection of $y = f (x)$ with $y -$ axis is