Classify the function as a polynomial function, rational function, or root function, and then find the domain. Write the domain in interval notation.f(t) = t2 + 2
A. polynomial function; (-?, ?)
B. polynomial function; (-2, ?)
C. polynomial function; [-2, ?)
D. polynomial function; (-?, -2) ? (-2, ?)
Answer: A
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Find the derivative of y with respect to x, t, or ?, as appropriate.y = ln 2x2
A. 
B. 
C. 
D. 
By graphing the function, visually estimate its domain and range.h(x) = |x| - 5
A. Domain: [5, ?); range: [5, ?) B. Domain: (-?, ?); range: [-5, ?) C. Domain: (-?, 5]; range: (-?, 5] D. Domain: (-?, ?); range: (-?, ?)
Evaluate the expression for the given value or values.3x + 8 for x = 4
A. 24 B. 11 C. 4 D. 20
Solve the problem.A company charters a boat trip that normally costs $420 per person. A group discount reduces the fare by $5 for each ticket sold; the more tickets sold, the lower the per-person price. The maximum capacity of the boat is 160 people, including a crew of 10 people. What size of group would maximize the boat company's revenue?
A. 42 B. 160 C. 150 D. 84