Application of Integrals Question - CBSE

Question

The area of region bounded by line $y = 2x + 1$, x-axis and ordinates $x = 1, x = 3$ is:
(a) $10 ext{ sq units}$
(b) $8 ext{ sq units}$
(c) $12 ext{ sq units}$
(d) $6 ext{ sq units}$

Accepted Answer

Area = \int_1^3 (2x+1) dx = [x^2 + x]_1^3 = (9+3) - (1+1) = 10. [1.0 Mark]

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🎯 Official CBSE Marking Scheme:
Selecting $10 ext{ sq units}$: 1.0 Mark

Question:

Step-by-Step Solution

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