Solve by Quadratic Formula

Solve using the Quadratic Formula.

• A

• B

• C

• D

Tags

CCSS.HSA-REI.B.4B

In order to use the quadratic formula you must first...

• Get the equation set equal to 0 and identify a, b, & c

• Move the constant to the right side of the equation

• Factor

• Cry because it is scary

Tags

CCSS.HSA-REI.B.4B

The quadratic equation can be used to solve quadratic equations that cannot be factored.

• True

• False

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

How many real number solutions does 3k² + k - 1 = 0 have?

• 2

• 1

• 0

Tags

CCSS.HSA-REI.B.4B

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

• -2, 3

• 2, 3

• 2, -3

• -2, -3

Solve using the Quadratic Formula:

2x² − x − 3 = 0

• x = −3/2, 1

• x = 3/2, −1

• x = −3/2, & −1

• x = 3/2, 1

Tags

CCSS.HSA-REI.B.4B

Solve Using the Quadratic Formula
 x² + 4x - 40 = -8

• -10 & -4

• -4 & 10

• -8 & 4

• 8 & -4

Tags

CCSS.HSA-REI.B.4B

If the discriminant is negative, you will have....

• two real solutions

• two irrational solutions

• two imaginary solutions

• one solution

Tags

CCSS.HSA-REI.B.4B