Relations and Functions — Cumulative exam Answers
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41
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What is the difference of the polynomials?
A
mn – 11B
mn + 3C
mc016-2.jpg
D
mc016-3.jpg
42
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Lucia finds that . What error did Lucia make?
A
She found the difference instead of the sum.B
She combined the terms 3x2 and 7x2 incorrectly.C
She combined the terms 3x and –9x incorrectly.D
She did not combine all like terms.43
Which complex number has an absolute value of 5?
A
–3 + 4iB
2 + 3iC
7 – 2iD
9 + 4i44
Given , what is ?
A
Negative 10
B
Negative 6
C
6
D
14
45
Which expression shows the sum of the polynomials with like terms grouped together?
A
mc005-2.jpg
B
mc005-3.jpg
C
mc005-4.jpg
D
mc005-5.jpg
46
Which complex number is represented by the point graphed on the complex plane below?
A
–4 + 3iB
3 + 4iC
3 – 4iD
4 + 3i47
What is the sum of and ?
A
4 StartRoot 2 EndRoot
B
4 StartRoot 2 EndRoot i
C
5 StartRoot 2 EndRoot
D
5 StartRoot 2 EndRoot i
48
Which graph represents a linear function?
A
mc002-1.jpg
B
mc002-2.jpg
C
mc002-3.jpg
D
mc002-4.jpg
49
Which relation represents a function?
A
StartSet (0, 0), (2, 3), (2, 5), (6, 6) EndSet
B
StartSet (3, 5), (8, 4), (10, 11), (10, 6) EndSet
C
StartSet (negative 2, 2), (0, 2), (7, 2), (11, 2) EndSet
D
StartSet (13, 2), (13, 3), (13, 4), (13, 5) EndSet
50
What is the sum of the polynomials?
A
mc017-2.jpg
B
mc017-3.jpg
C
9x + 4D
mc017-4.jpg
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