Coordinate Geometry Question 4
Question: All points lying inside the triangle formed by the points (1, 3), (5,0) and (-1,2) satisfy
[IIT 1986; Kurukshetra CEE 1998]
Options:
A) $ 3x+2y\ge 0 $
B) $ 2x+y-13\le 0 $
C) $ 2x-3y-12\le 0 $
D) All the above
Show Answer
Answer:
Correct Answer: D
Solution:
For $ (1,3),3x+2y=3+6>0, $ for (5, 0), $ 3\times 5+0>0 $ and for $ (-1,2),-3+4>0. $ Similarly other inequalities hold good.