Discriminant and roots

Which Formula is the Discriminant Formula?

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If the Discriminant is >0 How many real solutions will you have?

• 1

• 2

• 3

• 0

If the Discriminant is =0 How many real solutions will you have?

• 1

• 2

• 3

• 0

If the Discriminant is < 0, How many real solutions will you have?

• 1

• 2

• 3

• 0

Find the value of the discriminant

 $-x^{2\ }+\ x\ -1\ =\ 0$  

• 4

• -3

• 10

• 100

Find the value of the discriminant

 $x^{2\ }+\ 7x\ +4\ =\ 0$  

• 42

• -30

• 33

• 100

Find the value of the discriminant

 $x^{2\ }+4x\ +4\ =\ 0$  

• 0

• -30

• 27

• 80

• -1
• -3
• 9
• 0
• 1
• 3
• -9

• -1
• 4
• -9
• 0
• 1
• -4
• 9

• 3
• -10
• 5
• 0
• -3
• -9
• -5
• 1
• -1