Completing the Square of Quadratic Expressions

True or False: The vertex form is a form for a quadratic function: y=a(x-h)²+k, where the coordinates of the vertex are (h, k).

• True

• False

Find the zero: x² + 12x + 36

• x=7

• x= -6

• x= 3

• x=6

Factor the equation: x²+8x+16.

• (x+4)²

• (x+2)²

• (x-4)²

• (x+4)⁴

We have learned 3 methods to solve quadratic equations: Factoring, Quadratic Formula and _____.

• Zero Product Property

• Completing the Square

• Sum of Squares

• Discriminant

An equation of the 2nd degree.

• exponential equation

• linear equation

• quadratic equation

• cubic equation

Write the following quadratic equation in vertex form.

• y=(x + 4)² - 14

• y=(x + 4)² - 6

• y=(x + 4)² - 18

• y=(x + 4)² + 6

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If given the equation
y = 3(x + 5)² - 4,
what is the vertex of the parabola?

• (5, -4)

• (-5, -4)

• (-15, -4)

• (15, -4)