The area of a region bounded by a parabola and a horizontal line is
.
Where
represents base of the region along the horizantal line.
represents height of the region.
represents the parabola.
represents the horizantal line.
The points are
and
.
.
Now the base
of the parabola lies on the
axis which calculated by solving
.
The function
has zeros at
and
.
Therefore
and
are the factors of
.
Since the graph has one turning point and it is a parabola
is a quadratic.
The function can be written as
.

Check the points
and
by subustituting the values in the obtained equation.
.
Check for values
.
Check for values
.
Therefore
.
.
The function is in the form of
.
Where
The vertex is of
is located at the point with the
coordinate,
.

Subustiute
in
.

The vertex of
is at
.
The distance from the vertex to the horizontal line is the height of the region.
\Therefore height
is
Therefore base
is
.
Height
is
.
Subustiute these values in the area of the parabola
.

Therefore area bounded by
and
is
sq.units
Area bounded by
and
is
sq.units.