Identify the graph of the function.f ( x ) = x2 - 2x - 1
A. 
B. 
C. 
D. 
E. 
Answer: B
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Find the focus and directrix of the parabola.y2 = -32x
A. F: (8, 0); D: x = -8 B. F: (-8, 0); D: y = 8 C. F: (0, -8); D: y = 8 D. F: (-8, 0); D: x = 8
Underline the digit that occupies the given place.4,226Thousands place
A. 4,
26
B. 
,226
C. 4,2
6
D. 4,22
The linear programming problem has an unusual characteristic. Select a graph of the solution region for the problem and describe the unusual characteristic. Find the maximum value of the objective function (if possible) and where it occurs. ? z = 3x + 4y ? Constraints: ? x ? 0 y ? 0 x + y ?1 3x + y ? 6 ?
A. ?
The constraint 3x + y ? 6 is extraneous. Maximum at (1, 1): 7
B. ?
The constraint 3x + y ? 6 is extraneous. Maximum at (1, 0): 3
C. ?
The constraint 3x + y ? 6 is extraneous. Maximum at (0, 1): 4
D. ?
The constraint 3x + y ? 6 is extraneous. Maximum at (0, 0): 0
E. ?
The constraint 3x + y ? 6 is extraneous. No maximum.
State the domain and range of the function.f(x) = 3x - 2
A. domain: (-?, ?); range: (-2, ?) B. domain: (-?, ?); range: (-?, ?) C. domain: (-?, 0) ? (0, ?); range: (-2, ?) D. domain: (-?, ?); range: [-2, ?)