Chapter 8 Remote Test

What do you do to the b value to correctly complete the square?

• square it
• divide it by 2 and square the result
• divide it by 2 and take the square root of the result
• divide it by 2 only

Complete the square for
x² + 12x + ____

• x² + 12x + 144
• x² + 12x + 36
• x² + 12x - 36
• x² + +12x - 144

Complete the square.
x² + 6x + ____

• x² + 6x + 9
• x² + 6x - 36
• x² + 6x + 36
• x² + 6x - 9

Complete the Square
x² - 12x

• (x + 6)² + 12
• (x - 6)² - 24
• (x - 6)² - 12
• (x - 6)² - 36

Complete the Square
x² + 6x + 20

• (x + 3x)² + 11
• (x + 3)² + 11
• (x + 6)² + 11
• (x + 3)² + 29

Find the vertex of the quadratic function: y = 4x² + 24x + 5

• (−3, −31)

• (3, 113)

• (−3, −76)

• (3, 5)

Find the vertex of the quadratic function: y = −2x² + 80x + 77

• (−20, −723)

• (20, 877)

• (20, 1677)

• (−20, −2323)

Does this graph have a maximum or minimum?

• Minimum
• Maximum

What is the axis of symmetry for this graph?

• y=2
• x=2
• x=0
• y=0

What is the vertex form of a quadratic function?

• f(x) = 2a(x-h)² + k

• f(x) = a(x-h)² + k

• f(x) = (x+h)² + k

• f(x) = a(x-h) - k