Simplify. Write your answer in the form a + bi, where a and b are real numbers.Let z = 2 - 4i and w = 2 + 7i. Find zw.
A. 32 + 6i
B. -28i2 + 6i - 4
C. -24 - 22i
D. 32 - 6i
Answer: A
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What is the slope of the line through the points 
and 
?
?
A. 0.45 B. -1.67 C. 1.33 D. -0.60
Rephrase the statement as a conditional proposition with the form "if p, then q."Having a computer is necessary for taking this class.
A. If you take this computer, then you must have a class. B. If you have a computer, then you must take this class. C. If don't take this class, then you must not have a computer. D. If you take this class, then you must have a computer.
Use the limit properties to find the following limit.If 
f(x) = 4, find 
.
A. 4 B. Does not exist C. 2 D. 7
Identify the domain and then graph the function.f(x) = 
; use the following table.
A. (-?, ?)
B. [0, ?)
C. [3, ?)
D. (-?, ?)