Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (2, 1) for ln x + xy2 + ln y = 0.
A. 1
B. - 
C. 
D. -1
Answer: B
Mathematics
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Find the indicated matrix.Let A = 
and B = 
. Find A + B.
A. 
B. 
C. 
D. 
Mathematics
Round the mixed number to the nearest integer.-8
A. 8
B. -9
C. -8
D. -8
Mathematics
Find the slope of the line.x = -4
A. 0 B. undefined C. 4 D. -4
Mathematics
Graph the equation using a graphing calculator.r = 2?
A. 
B. 
C. 
D. 
Mathematics