Find an equation for the graph.
A. y = 4 cos 
x
B. y = 4 cos 2x
C. y = 2 cos 4x
D. y = 2 cos 
x
Answer: B
Mathematics
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Find the functions f and g so that F(x) = (f o g) (x).F(x) = 
A. f(x) = 58x2 + 85, g(x) = 
B. f(x) = 
, g(x) = 
C. f(x) = 
, g(x) = x2
D. f(x) = 
, g(x) = 58x2 + 85
Mathematics
Find the slope of the line that goes through the given points.(6, -8), (-2, 3)
A. - 
B. - 
C. - 
D. - 
Mathematics
Simplify the expression. If any variables are present, assume that they are positive.
? 
A. x3y8
B. x3y4
C. x3y8
D. x3y9
Mathematics
Solve the problem.Write the equations that describe the simple harmonic motion of a particle moving uniformly around a circle of radius 9 units, with linear speed 4 units per second.
A. x = 9 sin 4t, y = 9 sin 4t
B.
| x = 9 cos 4t, y = 9 sin 4t |
C. x = cos 9t + 4, y = sin 9t + 4
D. x = 4 cos 9t, y = 9 sin 4t
Mathematics