Complete the Square and Vertex Form

Convert to vertex form:

y = x² + 8x - 1

• y = (x + 4)² - 17

• y = (x + 4)² - 16

• y = (x + 4)² - 9

• y = (x + 4)² - 15

Convert to vertex form: y = x² - 2x + 5

• y = (x - 1)² + 4

• y = (x - 1)² - 4

• y = (x - 1)² + 3

• y = (x - 1)² + 7

Convert to vertex form:

y = x² + 4x + 9

• y = (x + 2)² + 5

• y = (x - 2)² + 5

• y = (x + 4)² + 5

• y = (x + 2)² - 5

Convert to vertex form:

y = x² + 14x + 50

• y = (x + 7)² + 1

• y = (x - 7)² - 1

• y = (x + 7)² - 50

• y = (x + 7)² - 1

Complete the square for

x² + 12x + ____

(find the missing number in the blank)

• x² + 12x + 144

• x² + 12x + 36

• x² + 12x - 36

• x² + +12x - 144

In vertex form, f(x) = a(x - h)² + k what does the h stand for?

• the y-coordinate of the vertex

• the x-coordinate of the vertex

• the x-intercept

• the y-intercept

Which of the following equations shows the vertex form of a quadratic?

• x = -b/2a

• x = (-b ±√b² - 4ac)/2a

• y = ax² + bx + c

• y = a(x - h)² + k

What is the first step to converting THIS equation to vertex form?

• Set the equation equal to zero

• Divide 10 by 2 and add the result to both sides

• Add x² and 10x together

• Subtract 21 on both sides

Convert to vertex form:

y = x² + 20x + 88

• y = (x + 10)² + 12

• y = (x - 10)² - 12

• y = (x - 10)² + 12

• y = (x + 10)² - 12

What is the vertex of this parabola?

y = 2(x - 3)² + 4

• (3, 4)

• (-3, 4)

• (3, -4)

• (-3, -4)