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10/13/2022-Unit 2B Test
By Melanie S Boyd
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Last updated almost 3 years ago
26 questions
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Note from the author:
Instructions
4
4
4
4
4
4
4
6
8
4
5
6
4
2
6
6
3
3
Remember, if you do not show on work on problems requiring work,
you will not receive credit.
Desmos Calculator: https://www.desmos.com/testing/virginia/scientific
Quadratic Formula:
Remember, if you do not show on work on problems requiring work,
you will not receive credit.
Desmos Calculator: https://www.desmos.com/testing/virginia/scientific
Quadratic Formula:
Question 1
1.
visibility
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Question 2
2.
Simplify:
visibility
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Question 3
3.
Simplify:
visibility
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Question 4
4.
Simplify:
visibility
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Question 5
5.
Simplify:
visibility
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Question 6
6.
Simplify
visibility
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Question 7
7.
Simplify:
visibility
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Question 8
8.
Solve by
graphing
visibility
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Question 9
9.
Solve by
substitution
. Show your work!!
visibility
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Question 10
10.
visibility
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Question 11
11.
Solve over the set of complex numbers:
visibility
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Question 12
12.
Solve:
visibility
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Question 13
13.
Find the discriminant of
visibility
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Question 14
14.
Which of the following describes the nature of the roots of the function whose graph is shown above?
2 real roots
1 real root
2 imaginary roots
visibility
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Question 15
15.
Solve
AND REDUCE
over the set of complex numbers:
visibility
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Question 16
16.
Solve over the set of complex numbers:
visibility
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These questions go together:
4
Question 17
17.
Given the function:
Find the discriminant.
visibility
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2
Question 19
19.
visibility
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Question 20
20.
visibility
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21
22
23
24
25
26
zoom_in
2
Question 21
21.
What is h?
2
Question 22
22.
2
2
2
3
is the equivalent to which of the following (choose all the apply!!)
1
-1
Simplify:
Then choose from the following to create the real and imaginary portion of the what you simplify:
a=__________
b=__________
(just choose the correct values below that you found when simplifying and include their correct sign)
-21
-20
-4
0
4
20
21
1 imaginary root
Question 18
18.
Given the function:
Use the discriminate you found to determine the number and type of root.
2 real roots
1 real root
2 imaginary roots
visibility
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What is k?
Question 23
23.
What is the increasing interval?
(remember that you're using x values...where, in relation to x, is the graph going up?)
Question 24
24.
What is the decreasing interval?
(remember that you're using x values...where, in relation to x, is the graph going down?)
Question 25
25.
What is the range?
Question 26
26.
What is the solution set of this equation? (using { } )
visibility
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1 imaginary root