Graph the equation.(x + 4)2 + (y + 4)2 = 9
A. 
B. 
C. 
D. 
Answer: D
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An apple orchard has an average yield of 38 bushels of apples/tree if tree density is 21 trees/acre. For each unit increase in tree density, the yield decreases by 3 bushels. Letting x denote the number of trees beyond 21/acre, find a function in x that gives the yield of apples.
What will be an ideal response?
Find the center (h, k) and the radius r of the circle.x2 + y2 + 14x - 6y + 58 = 9
A. (h, k) = (3, -7), r = 3 B. (h, k) = (7, -3), r = 9 C. (h, k) = (-7, 3), r = 3 D. (h, k) = (-3, 7), r = 9
Solve the rational inequality. Express the solution using interval notation.
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A. (-?, -2) ? (0, 1) ? (2, ?) B. (-?, -2] ? (0, 1] ? (2, ?) C. (-?, -2] ? [2, ?) D. (-?, -1] ? (0, 1] ? (2, ?)
Perform the indicated operation.u = 6i + j, v = -8i - 7j, w = i - 4j; Find w + (u - v).
A. -13i - 4j B. 4i + 15j C. 14i - 2j D. 15i + 4j