Find (i) the amplitude, (ii) the period, and (iii) the phase shift.y = - 
cos(2x - 2?)
A.
| (i) 2 | (ii) ? | (iii) ? |
B.
(i)  | (ii) ? | (iii)  |
C.
| (i) 2 | (ii) 2? | (iii) 2? |
D.
(i)  | (ii) ? | (iii) ? |
Answer: D
Mathematics
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Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.The enrollment at a local college increased 10% over last year's enrollment of 2,100. Find the increase in enrollment.
A. 2,100 students B. 2,310 students C. 210 students D. 1,890 students
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Find the equation of the quadratic function that has the given vertex and given point on its graph.Vertex: (5, 4) through: (2, 31)
A. P(x) = 3x2 - 30x + 79 B. P(x) = 3x2 - 5x + 4 C. P(x) = 2x2 - 30x - 79 D. P(x) = -3x2 - 30x + 4
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Write the fraction in simplest form.- 
A. - 
B. - 
C. - 
D. - 
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Use the graph of 
and translation to graph the function 
.
A. 
B. 
C. 
D. 
E. none of these
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