For the given equation, find the vertex or vertices.r = 
A. (1, 0)
B. (1, ?)
C. 
D. 
Answer: D
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Find all relative extrema for the function, and then match the equation to its graph.
z = y4 - 2y2 + x2 - 
A. Relative maxima of 
at (0, 1) and at (0, -1);
saddle point at (0, 0)
B. Relative maxima of 
at (0, 1) and at (0, -1);
saddle point at (0, 0)
C. Relative minima of - 
at (0, 1) and
at (0, -1); saddle point at (0, 0)
D. Saddle points at (0, 0), (-1, 1), (1, -1), (1, 1),
and (-1, -1)
Name the quadrant or axis in which the point lies.(-2, 14)
A. quadrant I B. quadrant II C. quadrant III D. quadrant IV
Solve the problem.Le Boulangerie, a bakery, sells four main items: sweet rolls, bread, cakes, and pies. The amount of each ingredient (in cups, except for eggs) required for these items is given by matrix A. Eggs Flour Sugar Shortening Milk
= A
The cost (in cents) for each ingredient when purchased in large lots or small lots is given in matrix B. cost
Large Lot Small Lot
= B
Suppose a day's orders consist of 20 dozen sweet rolls, 200 loaves of bread, 50 cakes, and 60 pies. Use matrix multiplication to find a matrix giving the costs under the two purchase options to fill the day's orders.
A. 
B. These matrices cannot be multiplied.
C. 
D. 
Find the exact value of the logarithmic expression.ln l
A. e B. 0 C. -1 D. 1