Solving Quadratic Equations with Real and Imaginary Numbers

What does the discriminant determine?

• Whether the graph goes up or down

• The vertex

• The number of Solutions

• The y-intercept

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• No Real Solution

• 
• 
• 

The quadratic equation can be used to solve quadratic equations that cannot be factored.

• True

• False

• A
• B
• C
• D

If the discriminant equals 0, then the quadratic has:

• Real Solution

• Real Solutions

• Half a Solution

• Imaginary Solutions

If the discriminant is positive, then the quadratic has:

• Real Solution

• Real Solutions

• Half a Solution

• Imaginary Solution

If the discriminant is negative, then the quadratic has:

• Real Solution

• Real Solutions

• Half a Solution

• Imaginary Solutions

QUESTION 8

• A 

• B 

• C 

• D 

Solve using the quadratic formula.
2x² - 9x - 35 = 0

• x = 7/2, x = -6

• x = -5/2, x =5

• x = -3/7, x =6

• x = -5/2, x = 7

QUESTION 5

• A

• B 

• C 

• D