Extended Alg 2B Exam Review

How many roots can a quadratic function have?

(select all that are true)

• 0

• 1

• 2

• Infinite

Solve using any method:

x² + 4x - 40 = -8

• {-10, -4}

• {-4, 10}

• {-8, 4}

• {-4, 8}

If the discriminant is equal to 4,

there are:

• 2 Complex Solutions

• 1 Real Solution

• 2 Real, Rational Solutions

• 2 Real, Irrational Solutions

What is the color of the graph that has exactly one real zero?

• black

• green

• purple

• red

• None of these graphs has exactly one zero.

Determine the values of a, b, and c for the quadratic equation:

4x² – 8x = 3

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

Does this graph have a maximum or a minimum?

• maximum

• minimum

• I am not sure.

• neither

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• No Real Solution

• 
• 
• 

If the discriminant is equal to -2,

there are:

• 2 Complex Solutions

• 1 Real Solution

• 2 Real, Rational Solutions

• 2 Real, Irrational Solutions

What are the roots if

a=1, b= -12, and c=36

• x= {6, 0}

• x= {-6, 6}

• x= {-6, 0}

• x= {6}

• x=-1

• x=1

• x=2

• x=-2