Quizizz-Quadratic Formula

What is this formula?

• This is the speed of light formula.
• This is the quadratic formula.
• This is the zero product property.
• This is scary.

Tags

CCSS.HSA-REI.B.4B

In the quadratic formula equation
x =  $\frac{b\ \pm\sqrt{b^2-4ac}}{2a}$  
Which portion is the discriminant?

• - $\frac{b}{2a}$  

•  $\frac{1}{2a}$  

•  $b^2\ -\ 4ac$  

Tags

CCSS.HSA-REI.B.4B

The discriminant is

• aX²  + bX  +  c
• b - 4ac
• b² - 4ac
• b² + 4ac

Tags

CCSS.HSA-REI.B.4B

What does the discriminant tell us?

• The maximum or minimum

• The y-intercept

• The number and type of solutions or roots

• The axis of symmetry

Tags

CCSS.HSA-REI.B.4B

____________
For the function above, is the discriminant positive, negative, or zero?

• Positive
• Negative
• Zero
• Not Sure

Tags

CCSS.HSA.REI.B.4

____________
For the function above, is the discriminant positive, negative, or zero?

• Positive
• Negative
• Zero
• Not Sure

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

A function has a discriminant of 25.

______________

How many solutions does it have?

• 0

• 1 real solution

• 2 real solutions

• 2 imaginary or non-real solutions

Tags

CCSS.HSA-REI.B.4B

A function has a discriminant of -4.

How many roots does it have?

• 0

• 1 real root

• 2 real roots

• 2 imaginary or non-real roots

Tags

CCSS.HSA-REI.B.4B

A function has a discriminant of 0.

How many roots does it have?

• 0

• 1 real root

• 2 real roots

• 2 imaginary or non-real roots

Tags

CCSS.HSA-REI.B.4B

Standard form of a quadratic equation

• y=x²
• y=ax²+bx+c
• y=mx+b
• y=x