4.2 Quadratic Functions in Vertex Form

4.2 Quadratic Functions in Vertex Form

LEQ: To graph a quadratic function, what are the advantages in having it written in vertex form?

Multiple Choice

Which of the quadratic equations is in vertex form?

• $y=ax^2+bx+c$

• $y=\left(x-p\right)\left(x-q\right)$

• $y=a\left(x-h\right)^2+k$

Fill in the Blank

Which letters make up the ordered pair of the vertex?

Write your answer as an ordered pair.

Multiple Choice

What is the vertex of the equation?

• (2, 1)

• (-2, 1)

• (3, 1)

• (3, -1)

Multiple Choice

Is this vertex a minimum or maximum?

• minimum because a > 0

• maximum because a > 0

• minimum because a < 0

• maximum because a < 0

Multiple Choice

To find our line of symmetry (or axis of symmetry) we write...

• x = a

• x = h

• x = -h

Multiple Choice

In vertex form, h is equal to the vertical translation of the graph.

• True

• False