Question
Mathematics Question on Coordinate Geometry
The points (a, 2), (0, b), (1, 1) are collinear. Then
A
ab=a+b+2
B
ab=a+b-2
C
ab=a+b
D
ab=a-b
Answer
ab=a+b-2
Explanation
Solution
The correct option is (B): ab=a+b-2
The points (a, 2), (0, b), (1, 1) are collinear. Then
ab=a+b+2
ab=a+b-2
ab=a+b
ab=a-b
ab=a+b-2
The correct option is (B): ab=a+b-2