Quadratic Formula

What is this formula?

• This is the standard formula.

• This is the quadratic formula.

• This is the square root formula.

• This is the Pythagorean formula

Tags

CCSS.HSA.REI.B.4

Which of the following is used to find the discriminant?

• the quadratic formula

• b² + 4ac

• b² - 4ac

• the square root of b² - 4ac

• the square root of b² + 4ac

If the discriminant is a negative number, then you will have

• one real solution

• two real solutions

• no real solutions

• infinite solutions

If the discriminant is a positive number, then you will have

• one real solution
• two real solutions
• no real solutions
• one imaginary solution

If the discriminant is 0 you will have:

• no real solutions
• two real solutions
• 1 real solution
• 1 imaginary solution

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

For the following quadratic equation, what is the value of c ?

x² - 7x + 2 = 15

• 2

• 15

• -13

• 17

Use the quadratic formula to solve 2x² + 2x - 12?

• -2, 3
• 2, 3
• 2, -3
• -2, -3

• A
• B
• C
• D

• A
• B
• C
• D