Week 4 Quiz

What type of equations always include an x²?

• Quadratic

• Linear

• Exponential

• Quartic

Tags

CCSS.HSA.CED.A.1

The solutions of the quadratic equation
x²-5x+6=0 are

• x=1 or x=-6
• x=3 or x=2
• x=-3 or x= 2
• x=-1 or x=6

Tags

CCSS.HSA-REI.B.4B

The solutions of the quadratic equation 
x²+9x+18=0 are

• x = 3 or x = 6
• x = -2 or x = -9
• x = 2 or x = 9
• x = -3 or x = -6

Tags

CCSS.HSA-REI.B.4B

• -4, 2
• -2, 4
• -16
• -4

Tags

CCSS.HSA-REI.B.4B

Solve:
x² - 49 = 0

• x = -7, x = 7
• x = -7
• x = 7
• x = -7, x = 1

Tags

CCSS.8.EE.A.2

Solve $x^2+6x=16$ by factoring.

Hint: Set the equation equal to zero first!

•  $\left\{8,\ -2\right\}$  

•  $\left\{-8,\ -2\right\}$  

•  $\left\{-8,\ 2\right\}$  

•  $\left\{2,\ 8\right\}$  

Tags

CCSS.HSA-REI.B.4B

Solve 2x² - 7x + 6 = 0 by factoring

• x = -3/2 and x = -2

• x = -3 and x = -2

• x = 3 and x = 2

• x = 3/2 and x = 2

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:

n² - 2n = 0

• n = 2 and 0

• n = -2 and 0

• n = 2

• n = 0

Tags

CCSS.HSA-REI.B.4B

Solve:  x² - 81 = 0 

• 9
• 9, -9
• 3, -3, 9, -9
• None of the above

Tags

CCSS.8.EE.A.2

Solve.  7m² - 12m + 5 = 0

• x = 5/7 and x = 1
• x = 8/3 and x = 2
• x = 8/3 and x = -1/2
• x = -2/3 and x = -5

Tags

CCSS.HSA-REI.B.4B