Analyze equations using the quadratic formula

Identify the values of A, B, and C

10p² + 7p - 20 = 0

a = ​ (a)   , b = ​ (b)   , c = ​ (c)  

• 10
• 7
• –20
• 1
• 0
• 20
• –7
• –10

Identify the values of A, B, and C

3m² - 14 = 11m

a = ​ (a)   , b = ​ ​ (b)   ​ , c = ​ (c)  

• 3
• –14
• 11
• –3
• 14
• 1
• 0

Identify the values of A, B, and C

5x² + x – 18 = –9x + 3x²

a = ​ (a)   , b = ​ (b)   , c = ​ (c)  

• 2
• 10
• –18
• 3
• 5
• –9
• –8
• 8

Match the following

• 2x² + 3x + 4 = 0

• 2x² + 3x + 4 = 0

• 4x² + 3x + 2 = 0

• 2x² – 3x + 4 = 0

Tags

CCSS.HSA-REI.B.4B

The discriminant is

• ax² + bx + c

• b – 4ac

• b² – 4ac

• b² + 4ac

Tags

CCSS.HSA-REI.B.4B

1 What does the discriminant tell us?

• The maximum or minimum

• The y-intercept

• The number and type of solutions

• The axis of symmetry

Tags

CCSS.HSA-REI.B.4B

For the function shown, is the discriminant positive, negative, or zero?

• Positive

• Negative

• Zero

What is the discriminant of 6x² − 2x − 3 = 0

• 76

• 29

• 68

• 1/3

• none of these

Tags

CCSS.HSA-REI.B.4B

What is the discriminant of -2x² − x − 1 = 0

• 76

• -7

• 9

• none of these

Tags

CCSS.HSA-REI.B.4B

What is the discriminant and how many solutions would this quadratic have?

x² - 6x + 9 = 0

Discriminant: ​ (a)   , number of solutions: ​ (b)  

• 0
• 1
• 2
• -72
• 72
• no real solutions

Tags

CCSS.HSA-REI.B.4B