Find an equation of variation for the given situation.y varies directly as z, and y = 50 when z = 400.
A. y = -2z
B. y = 
z
C. y = 8z
D. y = - 
z
Answer: B
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Calculate the Huntington-Hill number.City A: population 4800, 12 representatives
A. 147,692.408 B. 147,702.308 C. 147,693.308 D. 147,692.308
Use all applicable terms to classify the given number (Natural, Whole, Integer, Rational, Irrational).-
Fill in the blank(s) with the appropriate word(s).
Round the decimal to the given place value.5.367, nearest tenth
A. 5.3 B. 5.5 C. 5.367 D. 5.4
Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: {x|x ? 9} range: all real numbers intercepts: (-4, 0), (0, 8), (2, 0) symmetry: y-axis B. function domain: all real numbers range: {y|y ? 9} intercepts: (-4, 0), (0, 8), (2, 0) symmetry: none C. function domain: all real numbers range: {y|y ? 9} intercepts: (0, -4), (8, 0), (0, 2) symmetry: none D. not a function