Solve the problem.A rock falls from a tower that is 480 feet high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground (h = 0)?
A. 5.5 sec
B. 21.9 sec
C. 21.5 sec
D. 14,400 sec
Answer: A
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Graph the function. State the domain and range.y = - x2 - 1
A. 
Domain: ? Range: y ? - 1
B. 
Domain: x > -7 Range: ?
C. 
Domain: ? Range: ?
D. 
Domain: ? Range: y ? - 1
Solve the systems of equations by the addition method. 
A. 
B. {(7, 28)}
C. no solution; ?
D. {(2, 4)}
Solve the problem.Mark is filling decorative oil lamps for a reception. Each lamp can hold 
cup of oil. Mark has 1
cups of oil available. How many oil lamps can Mark fill completely?
A. 5 oil lamps
B. 3 oil lamps
C. 2
oil lamps
D. 4 oil lamps
Find the value for the function.Find f(x + h) when f(x) = -2x2 + 2x - 2.
A. -2x2 - 2h2 + 2x + 2h - 2 B. -2x2 - 2h2 - 2x - 2h - 2 C. -2x2 - 2xh - 2h2 + 2x + 2h - 2 D. -2x2 - 4xh - 2h2 + 2x + 2h - 2