Non-linear equations (one variable)

The formula to determine how many solutions a quadratic equation has is called the discriminant, which is...

• aX² + bX + c

• b - 4ac

• b² - 4ac

• b² + 4ac

To find the discriminant use the equation:

Find the DISCRIMINANT of  $x^2-9x+20=0$  and then state the number and type of solutions.

• 1; One Imaginary Solution

• 1; One Real Solution

• 1; Two Real Solutions

• 161; Two Real Solutions

Given, a= 2, b= -5 and c= 6, what does the discriminant look like?

If the discriminant is positive, then the solution will be

• one real solution

• two real solutions

• no real solutions

• one imaginary solution

Are you ready for review on DISCRIMINANT?

• yes

• no

If the discriminant is POSITIVE, the equation will have...

• 2 real solutions

• 1 real solution

• No real solutions

How many solutions can be proven by a discriminant?

• 0 solutions

• 1 solution

• 2 solutions

• 3 solutions

Reorder the following.

• find

• and interpret

• I can

• the discriminant

• of an equation.

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

4x² + 6x - 4 = 0

• 100; 2 imaginary, rational roots

• 100; 2 real, irrational roots

• 100; 2 real, rational roots

• 100; 2 imaginary, irrational roots