\ \

The parabola equation is . \ \

\ \

.

The standard form of parabola equation is . \ \

Compare the equation with standard form.

Here  and .

Here  is negative then the parabola opens leftward.

The vertex of the parabola is .

The focus of the parabola is .

The directrix of the parabola is .

Susbtitute and .

.

.

\

Graph:

Graph the parabola .

\ \

The vertex of the parabola is . \ \

The focus of the parabola is . \ \

The directrix of the parabola is . \ \

Graph of the parabola is: \ \

.