# What is the focus of the parabola that has a vertex at (0, 0) and that passes through the points (–3, 3) and (3, 3)?

##### 1 Answer

Jun 27, 2016

Focus is

#### Explanation:

As #(+-3, 3) are equidistant from the y-axis, y-axis is the axis

of the parabola. O(0, 0) is the vertex. Therefore, its equation is

of the form

This passes through

The focus is on the axis x = 0, at a distance a = 3/4, from

the vertex (0, 0).

Thus the focus is