Write a system of equations associated with the augmented matrix. Do not try to solve.
= 
A. 2x + y = -3
x + 2y = 2
-5x - 5y = 2
B. 2x + y + z = -3
x - 5y = 2
C. 2x = -3
x + y = 2
-5x - 5y = 2
Answer: C
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Subtract. Combine like terms, and write the answer in descending order.9h - (2 - 7h)
A. 16h - 2 B. 16h + 2 C. 2h - 2 D. 2h + 2
The graph of the polynomial f(x) is shown in the figure. Estimate the zeros and state whether their multiplicities are odd or even.
A. -3 (even), -1 (odd), 2 (even) B. -3 (even), -1 (even), 2 (odd) C. -3 (odd), -1 (odd), 2 (even) D. -3 (odd), -1 (even), 2 (odd)
Determine whether the origin is an attractor, repellor, or a saddle point of the dynamical system xk+1 = Axk, where A is given below. Determine the direction of greatest attraction or repulsion, appropriately.A = 
A. Attractor; direction of greatest attraction: along the line through 0 and 
B. Repellor; direction of greatest repulsion: along the line through 0 and 
C. Attractor; direction of greatest attraction: along the line through 0 and 
D. Saddle point; direction of greatest attraction: along the line through 0 and 
, direction of greatest repulsion: along the line through 0 and 
Simplify the expression by combining like terms.7b - 5a + 2c - 3b - 7a
A. 2a + 4b + 2c B. -12a + 4b + 2c C. -12a + 4b D. 4a - 12b + 2c