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- 1. Multiple ChoiceThe discriminant isaX2 + bX + cb - 4acb2 - 4acb2 + 4ac
- 2. Multiple Choice
For the function below, is the discriminant positive, negative, or zero?
___________
y = x² + 4x + 4
Positive
Negative
Zero
Not Sure
- 3. Multiple Choice
What is the discriminant of -2x2 − x − 1 = 0
76
-7
9
none of these
- 4. Multiple Choice
What is the discriminant of 6x2 − 2x − 3 = 0
76
29
68
none of these
- 5. Multiple Choice
What is the discriminant for 5x2 + x − 2 = 0
-39
42
-41
none of these
- 6. Multiple Choice
If the discriminant is positive, then the solution will be
one real solution
two real solutions
no real solutions
one imaginary solution
- 7. Multiple ChoiceA function has a discriminant of 25.
______________
How many solutions does it have?0125 - 8. Multiple ChoiceIn the equation
y = x2 +5x +7, match each leading coefficient with its correct lettera=0, b=5, c=7a=1, b=5, c=7a=7, b=5, c=1 - 9. Multiple ChoiceDetermine the value of the discriminant and name the nature of the roots for the following:
x2 + 7x + 13
Remember: b2 - 4ac400, 2 real root0, 1 real root with a multiplicity of 2-400, 2 imaginary roots-3, 2 imaginary roots - 10. Multiple ChoiceA function has a discriminant of -3.
______________
How many x-intercepts does it have?0123 - 11. Multiple Choice
____________
For the function above, is the discriminant positive, negative, or zero?PositiveNegativeZeroNot Sure - 12. Multiple Choice____________
For the function above, is the discriminant positive, negative, or zero?PositiveNegativeZeroNot Sure - 13. Multiple Choice
For the function below, is the discriminant positive, negative, or zero?
___________
y = x² + 4x + 4
Positive
Negative
Zero
Not Sure
- 14. Multiple ChoiceWhat are the solutions of this graph?-2 and 3-1/2 and -6-2 and -63 and -6
- 15. Multiple ChoiceFind the zeros of the equation:
(x+10)(x-2) = 010 and 2-2 and 10-10 and 2-2 and -10 - 16. Multiple Choice
How many solutions will this quadratic equation x2+8x+16 has?
2 real solutions
2 imaginary solution
1 solution
3 solutions
- 17. Multiple Choice
Given the equation 10x2 -6x=0, what is the value of C?
0
-6
10
x
- 18. Multiple Choice
Write this equation x2 -6 = x in standard form.
x2 +6x=0
x2 -6x=0
x2 -x -6 =0
x2 +x -6
- 19. Multiple Choice
Given that the value of A=-5 , B=1 and C=-5, solve for the discriminant.
-99
99
101
-100
- 20. Multiple Choice
Solve for the discriminant of the given equation -2x2 -6x=0
-36
36
0
44
- Answer choicesTagsAnswer choicesTags