MHT CET2017MathematicsArea Under Curves
The area of the region bounded by the lines y = 2 x + 1 , y = 3 x + 1 and x = 4 is
Options
- A16 sq. unit
- B121 3 sq.unit
- C121 6 sq.unit
- D8 sq. unit
Correct answer
D. 8 sq. unit
Step-by-step solution
A (shaded region) = A Δ A B D - A Δ A B C = 1 2 4 × 12 - 4 × 8 = 1 2 48 - 32 = 8 sq.units. OR A = Δ A C D = 1 2 0 1 1 4 9 1 4 13 1 = 1 2 × 16 = 8