Area enclosed by lines and axes
CAT 2020 Slot 3 · Quantitative Ability · Medium · Coordinate geometry
This is a medium Quantitative Ability question from the CAT 2020 Slot 3 paper. It tests Coordinate geometry. The full answer key and a step-by-step explanation are below — try it yourself first, then reveal the solution.
The area, in sq. units, enclosed by the lines , , the X-axis and the Y-axis is equal to
- A.
12
- B.
8
- C.
6
- D.
10
Answer
D
Explanation
The region is bounded by: (Y-axis), , (X-axis), .
For , , so . Hence .
The shape is a trapezium with vertices , , , and . Area = .
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