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.