The Discriminant of Quadratic Formula

If the graph of a quadratic does not intercept the x-axis at any point, then it has:

• Real Solution

• Real Solutions

• Half a Solution

• No Real Solution

What does the discriminant tell us?

• The maximum or minimum

• The y-intercept

• The number and type of solutions

• The axis of symmetry

If the discriminant is negative, you will have....

• two real solutions

• two irrational solutions

• no solution

• one solution

• Discriminant is positive, two distinct real roots

• Discriminant is zero, one real root

• Discriminant is negative, two imaginary roots

• Discriminant is one, one real root

The discriminant is

• aX²  + bX  +  c

• b - 4ac

• b² - 4ac

• b² + 4ac

What is the discriminant of -2x² − x − 1 = 0

• 76

• -7

• 9

• none of these

If the discriminant is zero the quadratic has

• 1 real solution

• 2 real solutions

• 2 complex solutions

• 1 real and 1 imaginary solution

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

• Positive

• Negative

• Zero

Mathematical Equivalence

ON

Find the discriminate of the following quadratic equation: 4x^2-5x-6=0

Mathematical Equivalence

ON