Refer to the table of the six basic solutions to the e-system.
In basic solution (B), identify the basic and nonbasic variables and determine if the solution is feasible or not feasible.
A. Basic variables: x2, s2
Nonbasic variables: x1, s1
Solution is not feasible.
B. Basic variables: x1, s2
Nonbasic variables: x2, s1
Solution is not feasible.
C. Basic variables: x2, s2
Nonbasic variables: x1, s1
Solution is feasible.
D. Basic variables: x2, s1
Nonbasic variables: x1, s2
Solution is not feasible.
Answer: A
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Solve.Find the center, foci, and asymptotes of the hyperbola 7x2 - y2 - 42x + 10y - 137 = 0
A. C: (3, 5); F: (3 + 10
, 5), (3 - 10
, 5); A: y - 5 = 7(x - 3), y - 5 = -7(x - 3)
B. C: (3, 5); F: (10
, 0), (- 10
, 0); A: y - 5 = 
(x - 3), y - 5 = -
(x - 3)
C. C: (3, 5); F: (3 + 10
, 5), (3 - 10
, 5); A: y - 5 = 
(x - 3), y - 5 = -
(x - 3)
D. C: (-2, 5); F: (10
, 0), (-10
, 0); A: y = 7x, y = -7x
The figure shows an angle ? in standard position with its terminal side intersecting the unit circle. Evaluate the indicated circular function value of ?.Find tan ?.
A. - 
B. - 
C. 
D. - 
Complete the table for the equation.y = - 
x + 4
A. 
B. 
C. 
D. 
Find the inverse of the one-to-one function.f(x) = x - 2
A. f-1(x) = 
B. f-1(x) = -2x
C. f-1(x) = 2x
D. f-1(x) = x + 2