CCSS.Math.Content.HSA.REI.B.4

When do you use the plus or minus symbol?
±

• After taking the square root of both sides
• After adding the square to both sides
• After taking half of b
• After setting the equation equal to zero

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CCSS.Math.Content.HSA.REI.B.4

Solve the equation by factoring: 
5x² - 35x + 60 = 0

• 3,  -4
• -3,  4
• 3,  4
• -3,  -4

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CCSS.Math.Content.HSA.REI.B.4

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

• 0
• 1
• 2
• 3

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CCSS.Math.Content.HSA.REI.B.4

If the discriminant equals 0, then the quadratic has:

• 1 Real Solution
• 2 Real Solutions
• Half a Solution
• 2 Imaginary Solutions

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CCSS.Math.Content.HSA.REI.B.4

How many solutions (x-intercepts) does the quadratic have?

• Two Solutions
• One Solution
• 0 Solutions
• I don't know

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CCSS.Math.Content.HSA.REI.B.4

If the discriminant is positive, then the solution will be

• one real solution

• two real solutions

• no real solutions

• one imaginary solution

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CCSS.Math.Content.HSA.REI.B.4

3 What is the discriminant of

-2x² − x − 1 = 0 ?

• 76

• -7

• 9

• none of these

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CCSS.Math.Content.HSA.REI.B.4

2 A function has a discriminant of 4.

How many x-intercepts does it have?

• 0

• 1

• 2

• 4

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CCSS.Math.Content.HSA.REI.B.4

Solve.

x² - 4 = 76

• No Real Number Solution

• x = ±4√5

• x = ±80

• x = ±5√4

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CCSS.Math.Content.HSA.REI.B.4

Solve.

x² + 3x - 4 = 0

• x = 2, x = 2

• x = 1, x = 4

• x = 1, x = -4

• No Real Number Solutions

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CCSS.Math.Content.HSA.REI.B.4