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{{ printedBook.courseTrack.name }} {{ printedBook.name }} Let's begin by finding the vertex of the parabola. Recall that the vertex is highest or lowest point of the curve and lies on the axis of symmetry.

The parabola opens *downward* and therefore the vertex is its maximum point. We see the vertex is the point $(-2,0).$ Next, we will find the equation of the axis of symmetry. The axis of symmetry is the vertical line through the vertex, and divides the parabola into congruent halves.

The equation of the axis of symmetry is $x=-2.$ Finally, we will find the $y-$intercept knowing that the $y-$intercept, which is the point where the graph intercepts the $y-$axis.

As we can see, the $y-$intercept is located at $(0,-3).$