Find Solutions Using the Discriminant Slides

Use the Discriminant to determine the type of solutions: -3x^2+7x-1=0

• real

• 2 real

• 2 imaginary

• 3 real

Determine the value of the discriminant and describe the number and type roots for the following:

x² + 7x + 13

• 101, 2 real roots

• 3, 2 real roots

• -101, 2 imaginary roots

• -3, 2 imaginary roots

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

• 0, No Solutions

• 0, 1 Solution

• 72, 2 Solutions

• -72, No Solution

What is the discriminant of this equation? 3x² + 8x = 0

• 64

• 52

• 9

• 0

find the value of the discriminant of the equation x² + 3x + 12 = 0

find the discriminant of the given equation x²- 6x +9 = 0.

find the value of discriminant of the quadratic equation 3x²= -2x -5.

What does the discriminant determine?

• Whether the graph goes up or down

• The vertex

• The number of Solutions

• The y-intercept

If the discriminant is positive, how many solutions does the graph have?

• 2

• 1

• 0

If the discriminant is negative, how many solutions does the graph have?

• 2

• 1

• 0