Quadratic Formula

Determine the values of a, b, and c for the quadratic equation:

4x² – 8x - 3 = 0

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

Identify the 'b' value: y = 16x² -8x -24

• 16
• -8
• 8
• -24

What should you do first in solving this equation?

x² + 6x - 13 = 3

• Factor

• Write down: a = 1, b = 6, c = -13

• Subtract 3 from both sides.

• Add 3 to both sides.

Tags

CCSS.HSA-REI.B.4B

Identify the values of A, B, and C

3m² - 14 = 11m

• A=3, B=-11, C=-14

• A=3, B=-14, C=11

• A=3, B=11, C=-14

• A=3, B=-14, C=11

Tags

CCSS.HSA.REI.B.4

Identify the values of A, B, and C

5x² + x - 18 = - 9x + 3x²

• A=2, B=10, C=-18

• A=5, B=1, C=-18

• A=8, B=-8, C=-18

• A=2, B=9, C=-18

Tags

CCSS.HSA.REI.B.4

The formula for the discriminate is written as

• (x-H)² + K

• b² - 4ac

• 
• Ax²+Bx+C

Tags

CCSS.HSA-REI.B.4B

If the Discriminate is greater than 0 it has how many roots?

• 0

• 1

• 2

• 3

Tags

CCSS.HSA-REI.B.4B

If the Discriminate is equal to 0, it has how many roots?

• 0

• 1

• 2

• 3

Tags

CCSS.HSA-REI.B.4B

If the graph of a quadratic does not intercept the x-axis at any point, then it has:

• 1 Real Solution
• 2 Real Solutions
• Half a Solution
• No Real Solution

Tags

CCSS.HSF-IF.C.7A

Using the quadratic equation, for this function f(x)=3x²+4x−8 the discriminate indicates we will have

• 2 real roots and 0 imaginary roots

• 2 imaginary roots and 0 imaginary roots

• 1 real root and 1 imaginary root

• 1 real root and 0 imaginary roots

• 1 imaginary root and 0 real roots

Tags

CCSS.HSA-REI.B.4B