Performing Operations with Complex Numbers — Unit test Answers
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Which function has the domain ?
A
y = StartRoot x + 11 EndRoot + 5
B
y = StartRoot x minus 11 EndRoot + 5
C
y = StartRoot x + 5 EndRoot minus 11
D
y = StartRoot x + 5 EndRoot + 11
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What is the absolute value of the complex number ?
A
StartRoot 14 EndRoot
B
3 StartRoot 2 EndRoot
C
14D
1823
What is the value of ?
A
–3 + 6iB
3 + 6iC
5 + 5iD
5 – 5i24
Which statement about the following equation is true?3x2 – 8x + 5 = 5x2
A
The discriminant is less than 0, so there are two real roots.B
The discriminant is greater than 0, so there are two real roots.C
The discriminant is less than 0, so there are two complex roots.D
The discriminant is greater than 0, so there are two complex roots.25
Which equation has a graph that lies entirely above the x-axis?
A
y = –(x + 7)2 + 7B
y = (x – 7)2 – 7C
y = (x – 7)2 + 7D
y = (x – 7)2Did you find these answers helpful?
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