Think you’ve got your head wrapped around Quadratic Formula and Functions? Put your knowledge to
the test. Good luck — the Stickman is counting on you!
Q. Simplify the expression (-1 + 6i)(2i3 – 4).
-8 – 22i
16 – 22i
8 – 26i
16 – 26i
-8 – 26i
Q. What are the roots of y = -2x2 + 5x – 2?
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_1.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_2.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_3.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_4.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_5.png)
There are no real roots for this function
x = -2 and
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_6.png)
Q. What are the roots of y = x2 + 7x + 17?
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_7.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_8.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_9.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_10.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_11.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_12.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_13.png)
None of these answers.
Q. What are the roots of y = 5x2 – 10x + 5?
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_15.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_16.png)
x = -1
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_17.png)
![](https://media1.shmoop.com/images/algebra-ii/alg2_quadratic_quiz_latek_18.png)
x = -1 + 2i and x = -1 – 2i
x = 1
Q. How many roots does y = x2 + ½x + 3 have?
2 complex roots
1 real root
2 real roots
0 roots
None of the above