The graph of a logarithmic function is shown. Select the function which matches the graph.
A. y = log2x
B. y = 1 - log2x
C. y = log2(-x)
D. y = -log2x
Answer: C
Mathematics
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For the pair of functions, determine the domain of f + g.f(x) = 4x + 2, g(x) = 2x + 1
A. (0, ?) B. (-?, 0) or (0, ?) C. (-?, ?)(-?, ?) D. (-?, -4) or (-4, ?)
Mathematics
For the equation 
, find in the form 
an equivalent equationin which the coefficient (multiplier) of x is the number -9.
What will be an ideal response?
Mathematics
Factor the perfect square trinomial completely.(x - 2y)2 + 4(x - 2y) + 4
A. (x - 2y + 2)2 B. (x - 2y - 2)2 C. (x + 2y - 2)(x - 2y + 2) D. (x + 2y + 2)2
Mathematics
Find the expected value of the probability density function to the nearest hundredth.f(x) = 
- 
; [2, 6]
A. 4.33 B. 5.00 C. 4.67 D. 4.00
Mathematics