Determine an appropriate viewing window for the given function and use it to display its graph.f(x) = 
A. 
B. 
C. 
D. 
Answer: C
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Simplify the expression.
?
?
A. 
B. 
C. 
D. 
E. 
Solve the problem.From a 28-inch by 28-inch piece of metal, squares are cut out of the four corners so that the sides can then be folded up to make a box. Let x represent the length of the sides of the squares, in inches, that are cut out. Express the volume of the box as a function of x.
A. V(x) = 4x3 - 112x2 + 784x B. V(x) = 2x3 - 84x2 + 28x C. V(x) = 2x3 - 84x2 D. V(x) = 4x3 - 112x2
Subtract and simplify. Write the answer as a mixed number if possible.15
- 
A. 13
B. 14
C. 15
D. 14
Solve the problem.A tutor charges $41 for a tutoring session that lasts for t hours. Complete the table to help find an expression that describes the cost (in dollars) per hour. (Show the arithmetic in order to see a pattern.)
A. 
B. 
C. 
D. 