Find an equation for the graph.
A. y = 2 cos (4x)
B. y = 4 cos 
C. y = 2 cos 
D. y = 4 cos (2x)
Answer: D
Mathematics
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Find the limit using 
= 1.
A. 
B. does not exist
C. 0
D. 
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Solve each proportion for the given variable.
= 
A. 
B. 6
C. 6
D. 7
Mathematics
Determine whether the function is one-to-one.f(x) = 3x + 6
A. One-to-one B. Not one-to-one
Mathematics
Evaluate the algebraic expression.(x + 5)(y + 5)
when x = -2 and y = 3
A. 11 B. 56 C. 5 D. 24
Mathematics