Use Cramer's rule to determine if the system is inconsistent system or contains dependent equations. x + z = 12x - 2y = -2 y + z = 4
A. system is inconsistent
B. system contains dependent equations
Answer: A
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Sketch the graph of the function on semilog paper.y = 2 e3x
What will be an ideal response?
Solve and check.
+ 
= 
A. x = 3 B. x = 0 C. No solution D. x = -7
From the graph of the parabola, determine whether the parabola opens upward or downward, and find the vertex, axis of symmetry, and range of the function. Find the maximum or minimum value of the function and the intervals on which the function is increasing or decreasing.
A. Down, (1, 1), x = 1, [-1, 3], max 1, inc (-?, 1], dec [1, ?) B. Down, (1, 1), x = 1, (-?, 1], max 1, inc (-?, 1], dec [1, ?) C. Down, (1, 1), x = 1, [1, ?), max 1, inc (-?, 1], dec [1, ?) D. Down, (1, 1), x = 1, [1, ?), min -1, inc [0, 1), dec (-?, 0]
Graph the linear equation using intercepts.y = 0.2x - 5
A. 
B. 
C. 
D. 