If , where (area of triangle joining points , and such that angle is a right angle) =…

MATHEMATICS · Single correct · CBSE · Mathematics · Coordinate Geometry · Coordinate Geometry

Problem

f: R \rightarrow N \cup \{0\}

, where

f

(area of triangle joining points

P(5,0)

Q(8,4)

and

R(x,y)

such that angle

PQR

is a right angle) = number of triangles, then which of the following is true? (A)

f(5) = 4

(B)

f(7) = 0

(C)

f(6.25) = 2

(D)

f(4.5) = 4