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- 1. Multiple ChoiceDetermine the values of
a, b, and c for
the quadratic equation:
4x2 – 8x = 3a = 4, b = -8, c = 3a = 4, b =-8, c =-3a = 4, b = 8, c = 3a = 4, b = 8, c = -3 - 2. Multiple ChoiceIf the graph of a quadratic does not intercept the x-axis at any point, then it has:1 Real Solution2 Real SolutionsHalf a SolutionNo Real Solution
- 3. Multiple ChoiceDoes the equation open or or down?
Y = -3x2 +7x - 2updown - 4. Multiple Choice
Use the quadratic formula to determine the solutions.
2x2 + 2x - 12?
-2, 3
2, 3
2, -3
-2, -3
- 5. Multiple Choice
Use the quadratic formula to determine the solutions.
2x2 - 9x - 35 = 0
x = 7/2, x = -6
x = -5/2, x =5
x = -3/7, x =6
x = -5/2, x = 7
- 6. Multiple Choice
The formula to determine how many solutions a quadratic equation is called the discriminant which is...
aX2 + bX + c
b - 4ac
b2 - 4ac
b2 + 4ac
- 7. Multiple ChoiceWhat does the discriminant tell us?The maximum or minimumThe y-interceptThe number and type of solutionsThe axis of symmetry
- 8. Multiple Choice
If the discriminant is negative, you will have....
two real solutions
two irrational solutions
no solution
one solution
- 9. Multiple Choice
For the function below, is the discriminant positive, negative, or zero?
___________
y = x² + 4x + 4
Positive
Negative
Zero
Not Sure
- 10. Multiple Choice
What are the solutions of this graph?-2 and 3-1/2 and -6-2 and -63 and -6 - 11. Multiple ChoiceFind the zeros of the equation:
(x+10)(x-2) = 010 and 2-2 and 10-10 and 2-2 and -10 - 12. Multiple Choice
Use the discriminant to determine the number of solutions the following quadratic equation has.
6x2 − 2x − 3 = 0
76 Two Solutions
29 Two Solutions
68 Two Solutions
none of these
- 13. Multiple Choice
Use the discriminant to determine the number of solutions the following quadratic equation has.
-2x2 − x − 1 = 0
76 Two Solutions
-7 No Solutions
9 Two Solutions
0 One Solution
- 14. Multiple Choice
How many solutions will this quadratic equation x2+8x+16 has?
2 real solutions
2 imaginary solution
1 solution
3 solutions
- Answer choicesTagsAnswer choicesTags