Find the coordinates of the vertex of the quadratic function.f(x) = -(x + 2)2 + 6
A. (6, 2)
B. (6, -2)
C. (2, 6)
D. (-2, 6)
Answer: D
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Find the LCM.9, 18, and 27
A. 18 B. 27 C. 486 D. 54
Find the distance on the number line between the pair of numbers.
, - 
A. 
B. 
C. 
D. 
Solve the inequality. Graph the solution set, and state the solution set in interval notation.|x - 1| ? 0
A. (-?, -1) ? (-1, ?)
B. 1
C. (-?, 1) ? (1, ?)
D. (-?, ?)
Solve the problem.A carpenter makes a door frame whose outside dimensions are 68 inches tall by 54 inches wide. To make sure that the door is still in the shape of a rectangle he measures both the diagonals using the inside corners. If each piece of wood is 2 inches thick, how long should the inside diagonals be to the nearest tenth of an inch? Hint: The frame has no bottom on it.
A. 43.1 inches B. 7540 inches C. 122 inches D. 82.8 inches