$\"\"$

The function is $\"\"$ .

Graph the area of region:

$\"\"$

Observe the graph:

The graph of the function is in the shape of trapezoid.

Trapezoidal has the base $\"\"$ and height $\"\"$ .

The area of the trapezoidal is $\"\"$ .

$\"\"$ = Area of the trapezoid.

Area of the trapezoid is,

$\"\"$

$\"\"$ .

$\"\"$

The area of the region is $\"\"$ square units.