Q.
If the line $x + y - 1 = 0$ is a tangent to the parabola $y^{2} - y + x = 0$, then the point of contact is
A) (0, 1)
B) (1, 0)
C) $(0,\ - 1)$
D) $( - 1,\ 0)$
Explanation
(a)
Since, $x + y - 1 = 0$ is a tangent to the parabola $y^{2} - y + x = 0$, then point of contact is satisfied by both of these equations. The point (0, 1) satisfies it
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.