\

$\"\"$ The equation is $\"\"$

\

$\"\"$

\

Quadratic function represents parabola in the graph.

\

Compared to the quadratic function $\"\"$

\

$\"\"$

\

since $\"\"$ then the parabola open downwards.

\

\

Vertex is $\"\"$

\

Axis of symmetry $\"\"$

\

$\"\"$

\

$\"\"$

\

Axis of symmetry is $\"\"$

\

$\"\"$

\

$\"\"$

\

Vertex is $\"\"$

\

\

Find the $\"\"$ - intercepts by substituting $\"\"$ in $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$ and $\"\"$

\

Find the $\"\"$ - intercept by substituting $\"\"$ in $\"\"$ .

\

$\"\"$

\

$\"\"$

\

\

Graph:

\

Draw the coordinate plane.

\

Plot the axis of symmetry, vertex and intercepts.

\

Connect the plotted points with smooth curve.

\

\

\

\

$\"\"$ Domain of the quadratic function is all real numbers.

\

Domain set of $\"\"$ is $\"\"$ .

\

Domain in interval notation $\"\"$

\

Range set of $\"\"$ is $\"\"$ .

\

Range in interval notation $\"\"$ .

\

Increasing $\"\"$ .

\

Decreasing $\"\"$ .