Classify the function as a polynomial function, rational function, or root function, and then find the domain. Write the domain in interval notation.g(x) = 
A. rational function; (-?, ?)
B. rational function; (-?, -2) ? (-2, 2) ? (2, ?)
C. rational function; (-?, 0) ? (0, ?)
D. rational function; (4, ?)
Answer: B
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Solve the problem.A domed ceiling is a parabolic surface. For the best lighting on the floor, a light source is to be placed at the focus of the surface. If 9 m down from the top of the dome the ceiling is 19 m wide, find the best location for the light source. Round to one decimal place if necessary.
A. 5 m down from the top B. 2.5 m down from the top C. 10 m down from the top D. 7.5 m down from the top
Convert the measurement as indicated. Round to the nearest tenth, if necessary.31 cm to inches
A. 78.7 in. B. 12.1 in. C. 3.1 in. D. 9.3 in.
Find the missing dividend or divisor.
= 3x - 1
A. x - 4 B. 2x + 4 C. x + 4 D. 2x - 4
Find the requested polynomial. Find a polynomial function of degree 3 with -1, 2, 4 as zeros.
A. f(x) = x3 + 5x2 + 2x - 8 B. f(x) = 3x3 + 5x2 + 2x - 8 C. f(x) = x3 - 5x2 + 2x + 8 D. f(x) = x3 + 7x2 + 2x - 2