For the given Cartesian equation, write an equivalent polar equation.x2 - y2 = 4
A. r2 cos 2? = 4
B. cos2 ? - sin2 ? = 4r
C. r cos 2? = 4
D. cos2 ? - sin2 ? = 4
Answer: A
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If f satisfies the equation of change 
, then what can be said about the function 
?
?
A. f is linear with slope 
.
B. f is linear with slope -5.
C. f is exponential with decay factor -5.
D. f is exponential with decay factor 
.
Find the measures of angles A, B, and C in ?ABC.m?B = 3m?A m?C = m?A + 105
A. 15°, 45°, 120° B. 10°, 30°, 115° C. 14°, 42°, 124° D. 10°, 30°, 140°
Plot the complex number in the complex plane.-5i 
A. 
B. 
C. 
D. 
Determine independence. Answer Yes or No.The table shows the political affiliation of voters in one city and their positions on stronger gun control laws. ?Stronger Gun Control 
Are party affiliation and position on gun control laws independent?
A. Yes B. No