Provide an appropriate response.
Solve the system of equations using the addition method: 3a + b = 3 a + 2b = 11
A. a = 6, b = -15
B. a = -1, b = 6
C. a = 1, b = 0
D. a = 
, b = -5
Answer: B
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Find the domain and range of the function.f(x) = 5 - x2
A. D: (-?, ?), R: (-?, 5] B. D: (-?, ?), R: [5, ?) C. D: (-?, ?), R: (-?, ?) D. D: (-?, 5], R: (-?, ?)
The graph of a piecewise-defined function is given. Write a definition for the function. 
A. 
B. 
C. 
D. 
Solve the problem.A ship leaves point A and travels directly north to point B. From point B, the ship then travels due east to point C. The magnitude of the vector from point A to point C is 140. Find the magnitude of the northern vector. Find the magnitude of the eastern vector.
A. 70 north; 70 east
B. 70
north; 70
east
C. 70
north; 70 east
D. 70 north; 70
east
List the ordered pairs from the table.
A. (1, -9), (2, -6), (4, 0), (5, 3) B. (3, 1), (0, 2), (-6, 4), (-9, 5) C. (1, 3), (2, 0), (4, -6), (5, -9) D. (1, 0), (2, 3), (4, -9), (5, -6)