Find the period, amplitude, or shift.Find the amplitude of y = -5 sin (2x + ?).
A. 5
B. -10
C. ?
D. 2
Answer: A
Mathematics
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Solve the problem.The accompanying figure shows the graph of y = -x2 shifted to a new position. Write the equation for the new graph.
A. y = -(x - 6)2 B. y = -x2 - 6 C. y = -(x + 6)2 D. y = -x2 + 6
Mathematics
Simplify using order of operations.42 ÷ (-7) - 9 ÷ (-3)
A. 3 B. -3 C. -9 D. 9
Mathematics
Determine two pairs of polar coordinates for the point with 0° ? ? < 360°.(3
, 9)
A. (6
, 30°), (-6
, 330°)
B. (6
, 30°), (-9
, 330°)
C. (6
, 60°), (-6
, 240°)
D. (6
, 300°), (-6
, 60°)
Mathematics
Solve the formula for the indicated variable.R = nE - nr, for n
A. n = R + nr - E
B. n = R - E + r
C. n = 
D. n = 
Mathematics