The quadratic function is
.
The above function compare with
.
Rewrite the function 
a =
, b =
and c = 9 .
The y-intercept of the equation is c = 9.
\The equation of the axis symmetry is
.
(Substitute the values a =
and b =
)
(Simplify)
The x-coordinate of the vertex is
.
The equation of the axis symmetry is
and x-coordinate of the vertex is 1.75.
Make a table of values that includes the vertex.
\| \
| \
\
| \
\
| \
\
| \
| \
| \
\
| \
\
| \
\
| \
| \
| \
\
| \
\
| \
\
| \
| \
| \
\
| \
\
| \
\
| \
| \
| \
\
| \
\
| \
\
| \
| \
| \
\
| \
\
| \
\
| \
Graph of the quadratic function
is
Draw a coordinate plane.
\Plot the points.
\Draw a smooth curve through this points.
\=(0_66)x%5E2-(2_33)x+9.gif\")
The y-intercept of the equation is c = 9. and The equation of the axis
\symmetry is
and x-coordinate of the vertex is 1.75.
The graph of the quadratic function
is
=(0_66)x%5E2-(2_33)x+9.gif\")