The function is .
Find the vertex, axis symmetry and direction of opening.
\The vertex form of a parabola is .
Where is the vertex,
is the axis of symmetry and
determines the shape of the parabola and the direction in which it opens.
Thus, the vertex is .
The equation of axis of symmetry is .
The value of is positive, so the parabola opens up.
Graph:
\Graph the function .
Axis of symmetry is , the parabola opens up.
Graph of the function .