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The area (in sq. units) of the region bounded by the line y=x+2y = x + 2, x=0x = 0, x=1x = 1 and y=0y = 0 is

Solution

✅ Correct Option: 2

The region is bounded by y=x+2y = x + 2, x=0x = 0, x=1x = 1, and y=0y = 0.

Key points on the line y=x+2y = x + 2:

When x=0x = 0:

y=0+2=2y = 0 + 2 = 2

Point: (0,2)(0, 2)

When x=1x = 1:

y=1+2=3y = 1 + 2 = 3

Point: (1,3)(1, 3)


The bounded region forms a trapezoid with:

Bottom side: along the x-axis from (0,0)(0,0) to (1,0)(1,0)

Left side: vertical line from (0,0)(0,0) to (0,2)(0,2) with height =2= 2

Right side: vertical line from (1,0)(1,0) to (1,3)(1,3) with height =3= 3

Top side: line y=x+2y = x + 2


Using the trapezoid area formula:

Area =12×(sum of parallel sides)×width= \dfrac{1}{2} \times (\text{sum of parallel sides}) \times \text{width}

Sum of parallel sides =2+3=5= 2 + 3 = 5

Width =1−0=1= 1 - 0 = 1

Area =12×5×1= \dfrac{1}{2} \times 5 \times 1

Area =52= \dfrac{5}{2} sq. units

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