
Discriminant
Presentation
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
Ann Hadwin
Used 35+ times
FREE Resource
0 Slides • 15 Questions
1
Multiple Choice
What does the discriminant tell us?
The maximum or minimum
The y-intercept
The number and type of solutions. (x-intercepts, roots)
The axis of symmetry
2
Multiple Choice
If the discriminant is positive, then the solution will be
one real solution
two real solutions
no real solutions
one imaginary solution
3
Multiple Choice
For the given quadratic, is the discriminant positive, negative, or zero?
Positive
Negative
Zero
Not Sure
4
Multiple Choice
If the discriminant is equal to -2, how many solutions are there?
No Real Solutions
1 Solution
2 Solutions
Infinite Solutions
5
Multiple Choice
A quadratic funtion has a discriminant of 25.
How many solutions does it have?
0
1
2
5
6
Multiple Choice
7
Multiple Choice
If the discriminant is equal to 4, how many solutions are there?
No Solutions
1 Solution
2 Solutions
Infinite Solutions
8
Multiple Choice
What is the value of the discriminant of 6x2 − 2x − 3 = 0
76
29
68
none of these
9
Multiple Choice
What is the discriminant and how many solutions would this quadratic have?
x2 - 6x + 9 = 0
0, No Solutions
0, 1 Solution
72, 2 Solutions
-72, No Solution
10
Multiple Choice
If the discriminant is a negative number, the quadratic function has no real roots.
True
False
11
Fill in the Blanks
Find the value of the discriminant. Type in the answer.
3x2+9x−2=0
Type answer...
12
Multiple Choice
If the discriminant is equal to 0, how many solutions are there?
No solutions
1 Solution
2 Solutions
Infinite solutions
13
Multiple Choice
Given the values of a=-5 , b=1 and c=-5, solve for the discriminant.
-99
99
101
-100
14
Multiple Choice
For the function below, is the discriminant positive, negative, or zero?
___________
y = x² + 4x + 4
Positive
Negative
Zero
Not Sure
15
Multiple Choice
x2 + 7x + 13
Remember: b2 - 4ac
What does the discriminant tell us?
The maximum or minimum
The y-intercept
The number and type of solutions. (x-intercepts, roots)
The axis of symmetry
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