Quadratic Functions Practice Part II

Which method is most efficient for solving:

x²+7x+14=0

• Square root method

• Quadratic Formula

• Factoring

• Completing the Square

Tags

CCSS.HSA-REI.B.4B

Which method is most efficient for solving:

x²-7x-18= 0

• Square Root Method

• Quadratic Formula

• Factoring

• Completing the Square

Tags

CCSS.HSA-REI.B.4B

Which method is most efficient for solving:

(x - 3)² = -36

• Square Root Method

• Quadratic Formula

• Factoring

• Completing the Square

If you were going to use quadratic formula to solve the following, what would be your first step:

2x² - 4x = 12

• Divide everything by 2

• Subtract 12 from both sides

• Assign a, b and c values

• Plug in numbers into the quadratic formula

Tags

CCSS.HSA-REI.B.4B

If you were going to use square root method to solve the following, what would you do first?

2(x -3)² = 8

• Distribute the coefficient of 2

• Divide both sides by 2

• Distribute the exponent of 2

• Square root both sides

Tags

CCSS.HSA-REI.B.4B

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3
• a = 4, b =-8, c =-3
• a = 4, b = 8, c = 3
• a = 4, b = 8, c = -3

The discriminant is

• aX²  + bX  +  c
• b - 4ac
• b² - 4ac
• b² + 4ac

Tags

CCSS.HSA-REI.B.4B

If the discriminant equals 0, then the quadratic has:

• 1 Real Solution
• 2 Real Solutions
• Half a Solution
• 2 Imaginary Solutions

Tags

CCSS.HSA-REI.B.4B

If the discriminant is positive, then the quadratic has:

• 1 Real Solution
• 2 Real Solutions
• Half a Solution
• 2 Imaginary Solution

Tags

CCSS.HSA-REI.B.4B

If the discriminant is negative, then the quadratic has:

• 1 Real Solution
• 2 Real Solutions
• Half a Solution
• 2 Imaginary Solutions

Tags

CCSS.HSA-REI.B.4B