Discriminant Quiz

The discriminant is

• aX²  + bX  +  c
• b - 4ac
• b² - 4ac
• b² + 4ac

What does the discriminant tell us?

• The maximum or minimum

• The y-intercept

• The number of solutions

• The axis of symmetry

If the discriminant is a negative number, the quadratic function has no real roots.

• True

• False

Determine the value of the discriminant and determine the number of real solutions for the following:
 $x^2+2x-63=0$  

• 256,  2 real solutions

• - 256, 0 real solution

• 248, 2 real solutions

• -248, 0 real solution

A function has a discriminant of -3.
______________
How many x-intercepts does it have?

• 0
• 1
• 2
• 3