Find the requested partial derivative.z = 6x3 + 4xy - y; 
(5, 1)
A. 4
B. 454
C. 3
D. 453
Answer: B
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Write the equation of the circle in standard form. Find the center and radius. Then sketch the graph.x2 + y2 + 6x - 4y - 12 = 0
A. (x - 3)2 + (y - 2)2 = 25
(h, k) = (3, 2), r = 5
B. (x + 3)2 + (y + 2)2 = 25
(h, k) = (-3, -2), r = 5
C. (x - 3)2 + (y + 2)2 = 25
(h, k) = (3, -2), r = 5
D. (x + 3)2 + (y - 2)2 = 25
(h, k) = (-3, 2), r = 5
Define T: R2 ? R2 by T(x) = Ax, where A is the matrix defined below. Find the requested basis B for R2 and the corresponding B-matrix for T.Find a basis B for R2 and the B-matrix D for T with the property that D is a diagonal matrix.A = 
A.
B = 
, D = 
B.
B = 
, D = 
C.
B = 
, D = 
D.
B = 
, D = 
Use the Factor Theorem to determine whether the linear polynomial is a factor of the second polynomial.x - 6; x3 - 12x2 + 45x - 54
A. Yes B. No
Is the following statement true or false?-14 ? 20
A. True B. False