Solve Quadratic Equations Using the Quadratic Formula

Solve
 b² + b - 56 = 0

• 7 & -8

• -7 & 8

• 1.8 & -1.4

• 2.5 & -0.5

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CCSS.HSA-REI.B.4B

• A
• B
• C
• D

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CCSS.HSA-REI.B.4B

• A
• B
• C
• D

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CCSS.HSA-REI.B.4B

• A
• B
• C
• D

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CCSS.HSA-REI.B.4B

QUESTION 1

• A

• B

• C

• D

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CCSS.HSA-REI.B.4B

Solve using the Quadratic Formula:

x² + 6x + 9 = 0

• x = −3, 3

• x = −3

• x = 3

• No Solution

Tags

CCSS.HSA-REI.B.4B

Solve using the Quadratic Formula:

15x² + 22x = −8

• x = −2/3, 4/5

• x = 2/3, −4/5

• x = 2/3, 4/5

• x = −2/3, −4/5

Tags

CCSS.HSA-REI.B.4B

2d² = 8

• 4

• -2

• -4, 4

• -2, 2

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CCSS.8.EE.A.2

A function has a discriminant of -3.
______________
How many x-intercepts does it have?

• 0

• 1

• 2

• 3

Tags

CCSS.HSA-REI.B.4B

If the discriminant is zero you will have

• no real solutions

• two real solutions

• 1 real solution

• 1 imaginary solution

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CCSS.HSA-REI.B.4B