Connecting Standard Form and Vertex Form

Match each quadratic equation with the correct coefficients a, b, and c:

• y = -9x² + 2x - 1

• a= 2, b= -1, c= 9

• y = 2x² - x + 9

• a= -9, b= 2, c= -1

• y = -x²+ 2x - 9

• a= 1, b= 2, c= -9

• y = x² + 2x - 9

• a= -1, b= 2, c= -9

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

Match the following expressions with their equivalent expanded forms.

• y = 9x² - 15x + 21

• y = -3x² - 75x - 4

• y = 9x² + 90x + 221

• y = -3x² - 30x - 79

• y = -5x² - 20x - 30

• y = -5x² - 4x - 10

• y = 25x² + 100x + 90

• y = 25x² - 10x - 30

• -2
• 20
• -33
• -67
• -20
• 2
• 33
• 67

Convert to vertex form.

• y=-2(x+12)² - 77

• y=-2(x-12)² - 77

• y=-2(x-6)² + 77

• y=-2(x+6)² + 77

Convert to vertex form.

• y=1/2(x-4)² - 29
• y=1/2(x+4)² - 29
• y=1/2(x+8)² - 29
• y=1/2(x-8)² - 29

• A
• B
• C
• D

Tags

CCSS.HSA.SSE.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

• A
• B
• C
• D

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3