{{ item.displayTitle }}

No history yet!

Student

Teacher

{{ item.displayTitle }}

{{ item.subject.displayTitle }}

{{ searchError }}

{{ courseTrack.displayTitle }} {{ statistics.percent }}% Sign in to view progress

{{ printedBook.courseTrack.name }} {{ printedBook.name }} Recall that the highest or lowest point of a parabola is its vertex, which is on the axis of symmetry. Keeping this in mind, let's label the vertex.

We can see above that the vertex is the point $(-3,-2).$ Since the parabola opens *upwards,* its vertex is a minimum.