$\"\"$

\

(a) Find $\"\"$ .

\

Observe the graph:

\

The region from $\"\"$ to $\"\"$ is in the shape of triangle.

\

The triangle is below the $\"\"$ -axis.

\

The area of triangle is $\"\"$ .

\

The base of triangle is $\"\"$ and the height is $\"\"$ .

\

$\"\"$ = area of triangle.

\

$\"\"$

\

$\"\"$ square units.

\

$\"\"$ square units.

\

$\"\"$

\

(b) Find $\"\"$ .

\

Observe the graph:

\

The region from $\"\"$ to $\"\"$ is in the shape of rectangle.

\

The area of rectangle is $\"\"$ .

\

The base of rectangle is $\"\"$ and height is $\"\"$ .

\

$\"\"$ = 3 (area of rectangle).

\

$\"\"$

\

$\"\"$ square units.

\

$\"\"$ square units.

\

$\"\"$

\

(c) Find $\"\"$ .

\

Observe the graph:

\

The region from $\"\"$ to $\"\"$ is in the shape of triangle.

\

The region is below the $\"\"$ -axis.

\

The region from $\"\"$ to $\"\"$ is in the shape of trapezoid.

\

The region from $\"\"$ to $\"\"$ is in the shape of triangle.

\

The region is below the $\"\"$ - axis.

\

$\"\"$ area of triangle + area of trapezoid + area of the triangle.

\

$\"\"$

\

$\"\"$ square units.

\

$\"\"$

\

(d) Find $\"\"$ .

\

Observe the graph:

\

The region from $\"\"$ to $\"\"$ is in the shape of triangle.

\

The region from $\"\"$ to $\"\"$ is in the shape of triangle.

\

The region is below the $\"\"$ -axis.

\

The region from $\"\"$ to $\"\"$ is in the shape of triangle.

\

$\"\"$ area of triangle + area of triangle + area of triangle

\

$\"\"$

\

$\"\"$ square units.

\

$\"\"$

\

(e) Find $\"\"$ .

\

Observe the graph:

\

The region from $\"\"$ to $\"\"$ is in the shape of triangle.

\

The region is below the $\"\"$ - axis.

\

The region from $\"\"$ to $\"\"$ is in the shape of trapezoid.

\

The region from $\"\"$ to $\"\"$ is in the shape of triangle.

\

The region is below the $\"\"$ - axis.

\

The region from $\"\"$ to $\"\"$ is in the shape of triangle.

\

$\"\"$

\

$\"\"$

\

$\"\"$ square units.

\

$\"\"$

\

(f) Find $\"\"$ .

\

Observe the graph:

\

The region from $\"\"$ to $\"\"$ is in the shape of triangle.

\

The region from $\"\"$ to $\"\"$ is in the shape of triangle.

\

$\"\"$

\

$\"\"$

\

$\"\"$ square units.

\

$\"\"$

\

(a) $\"\"$ square units.

\

(b) $\"\"$ square units.

\

(c) $\"\"$ square units.

\

(d) $\"\"$ square units.

\

(e) $\"\"$ square units.

\

(f) $\"\"$ square units.