AnswersMathematics IIQuadratic Functions and Complex Numbers

Quadratic Functions and Complex Numbers — Test Answers

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A rectangle’s width is 2 meters shorter than its length, l Its area is 168 square meters. Which equation can be used to find the length of the rectangle?

A
1 half l squared is equal to 168
B
l times l plus 2 is equal to 168
C
2 l squared is equal to 168
D
l times l minus 2 is equal to 168
23
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In which quadrant is the number 6 minus 8 i located on the complex plane?

A
I
B
IV
C
II
D
III
24

Solve for x in the equation x squared minus 8 x plus 41 is equal to 0

A
x is equal to negative 4 plus or minus square root of 37 i
B
x is equal to 4 plus or minus square root of 37 i
C
x is equal to 4 plus or minus 5 i
D
x is equal to negative 4 plus or minus 5 i
25

If x squared plus m x plus m is a perfect-square trinomial, which equation must be true?

A
x squared plus m x plus m is equal to open paren x plus 2 close paren squared
B
x squared plus m x plus m is equal to open paren x plus 4 close paren squared
C
x squared plus m x plus m is equal to open paren x minus 1 close paren squared
D
x squared plus m x plus m is equal to open paren x plus 1 close paren squared

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