State whether the linear model shown in the graph is exact or approximate. Then find the equation of the line.
A. Approximate; y = -x - 2
B. Approximate; y = -2x + 2
C. Exact; y = -x - 2
D. Exact; y = -2x + 2
Answer: B
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Solve the equation (x in radians and ? in degrees) for all exact solutions where appropriate. Round approximate answers in radians to four decimal places and approximate answers in degrees to the nearest tenth.
= 1
A. ? B. {45° + 360°n, 101.3° + 360°n} C. {0° + 180°n, 45° + 180°n, 101.3° + 180°n} D. {45° + 180°n, 101.3° + 180°n}
Write the product as a sum or difference containing only sines or cosines.cos 
cos 
A. 
[cos(2?) + cos(3?)]
B. 
[cos(6?) - sin(4?)]
C. 
[cos(3?) - sin(2?)]
D. 
cos2(5?)
Classify the statement as true or false. {8, 10, 12, 14} ? {-14, -12, -10, -8, 8, 10, 12, 14}
A. True B. False
Evaluate the determinant.
A. a - cb B. ab - cb C. -ab - cb D. cb - ab