The equation is .

Since the -term is squared, the parabola is horizontal.

Standard form of the horizontal parabola is .

Where

Vertex : .

Focus : .

Axis of symmetry : .

Directrix : .

The parabola equation is .

Write the equation in standard form.

To change the expression into a perfect square binomial, add to each side of the equation.

Here coefficient .

So, .

Add to each side of .

Compare the above eqation with .

Since , the parabola opens left.

Vertex : ,

Focus : ,

Axis of symmetry :

Directrix : .

Construct a table values to graph the curve.

The equation is .

Solve for .

	\ \
	\ \	\ \ \
	\ \	\ \ \

Graph :

Graph the vertex, focus, axis of symmetry and directrix of the parabola.

Plot the points obtained in the above table.

Connect those points with a smooth curve.

Graph of :

Vertex : .

Focus : .

Axis of symmetry : .

Directrix : .

Graph of   is