Hi, could anyone please guide me through this question: Find the minimum distance from a point on the positive x-axis (a, 0) to the parabola y2 = 8x.
A general point in the parabola is of the form , so use the formula for the distance between two points in the place to find the distance from to a point in the parabola as above, and then derivate wrt y to find citical points and etc.