Question
Mathematics Question on Parabola
Let R be the focus of the parabola y2 = 20x and the line y=mx+c intersect the parabola at two points Pand Q. Let the point G(10,10) be the centroid of the triangle PQR. If c-m=6, then (PQ)2 is
A
296
B
325
C
317
D
346
Answer
325
Explanation
Solution
The correct option is(B): 325