Find the domain of the rational expression.
A. {x|x is a real number and x ? 7}
B. {x|x is a real number}
C. {x|x is a real number and x ? 3}
D. {x|x is a real number and x ? 3 and x ? 7}
Answer: B
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Write < or > between the pair of numbers to make the statement true.
? 
A. < B. >
List the intercepts of the graph.Tell whether the graph is symmetric with respect to the x-axis, y-axis, origin, or none of these. 
A. intercepts: (6, 0) and (-6, 0 symmetric with respect to y-axis B. intercepts: (6, 0) and (-6, 0) symmetric with respect to x-axis, y-axis, and origin C. intercepts: (0, 6) and (0, -6) symmetric with respect to x-axis, y-axis, and origin D. intercepts: (0, 6) and (0, -6) symmetric with respect to origin
Choose the most reasonable measurement for the situation described.Ivan measured the length of a hammer. What is the most likely measurement?
A. 33 cm B. 33 m C. 33 mm D. 33 km
Using the graph of the parabola, determine the coordinates of the vertex and focus, and the equation of the directrix.
A. Vertex (-4, 3), focus (-3, 3), directrix x = -2 B. Vertex (-3, 3), focus (-2, 3), directrix x = -4 C. Vertex (-3, 3), focus (-4, 3), directrix x = -2 D. Vertex (-3, 3), focus (-4, 3), directrix y = -2