Solve Quadratic Using Formula

Solve    2x² + 7x - 15 = 0

• -1.5 or 5

• No Solution

• -5 or 1.5

• 0.7 or 5

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CCSS.HSA-REI.B.4B

QUESTION 1

• A

• B

• C

• D

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CCSS.HSA-REI.B.4B

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

• True

• False

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CCSS.HSA-REI.B.4B

Solve using the Quadratic Formula

6x² + 12x - 1 = 0

• x = 0.08, -2.08

• x = -0.08, 2.08

• x = -0.08, -1.91

• x = 0.08, 1.19

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B

• A
• B
• C
• D

Tags

CCSS.HSA-REI.B.4B

Identify the values of A, B, and C

• A=1, B=7, C=-20

• A=10, B=7, C=20

• A=10, B=-7, C=-20

• A=10, B=7, C=-20

What is the discriminant in the Quadratic Formula?

• -b + 4ac

• b - 4ac

• -b² - 4ac

• b² - 4ac

Tags

CCSS.HSA-REI.B.4B

What does the discriminant determine?

• Whether the graph goes up or down

• The vertex

• The number of Solutions

• The y-intercept

Tags

CCSS.HSA-REI.B.4B

If the discriminant is positive, how many solutions does the graph have?

• 2

• 1

• 0

Tags

CCSS.HSA-REI.B.4B