The line segment joining the points and is divided at the point in the ratio and it lies on the line . Find the value of .
Answer and explanation
Correct answer: A.
- Step 1: Coordinates of : , .
- Step 2: Substitute into line: .
- Step 3: .
Answer
.
Why not the others: moves to the right without sign change; computes ; and has both sign and arithmetic errors.
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