Write the expression as a single logarithm.logc x + logc y
A. logc 
B. logc x ? logc y
C. logc (x+ y)
D. logc xy
Answer: D
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Determine where the graph of the function is increasing, decreasing, concave up, concave down. Then sketch the graph.g(x) = 
A. 
B. 
C. 
D. 
Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum 
, using the indicated point in the kth subinterval for ck.f(x) = 2x + 4, [0, 2], left-hand endpoint
A. 
B. 
C. 
D. 
For the given regular polygon, find the measure of one angle.
A. 120° B. 108° C. 540° D. 60°
Explain how the graph of f can be obtained from the graph of y = 
or y = 
. f(x) = 
A. Shift the graph of y = 
to the left 20 units and downward 5 units.
B. Stretch the graph of y = 
vertically by a factor of 20, and shift to the left 5 units.
C. Shift the graph of y = 
to the right 5 units and upward 20 units.
D. Stretch the graph of y = 
vertically by a factor of 5, and shift to the left 20 units.