Graph the given function. Identify the vertex and the intercepts.y = - x2 - 6x - 9
A. Vertex: (3, 0)
x-intercept: 3
y-intercept: -9
B. Vertex: (3, 0)
x-intercept: 3
y-intercept: 9
C. Vertex: (-3, 0)
x-intercept: -3
y-intercept: 9
D. Vertex: (-3, 0)
x-intercept: -3
y-intercept: -9
Answer: D
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Use the properties of limits to evaluate the limit if it exists.
A. 
- 
B. Does not exist
C. 0
D. 
- 
Solve the problem.The cost of manufacturing a particular videotape (in dollars) is 
, where x is the number of tapes produced. The average cost per tape (in dollars), denoted by 
(x), is found by dividing c(x) by x. Find 
(x).
A. $3 B. $4 C. $5 D. does not exist
Solve the problem.A rock falls from a tower that is 83.3 m 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. 1,400 s B. 8.9 s C. 9.1 s D. 4.1 s
Factor.x3 - 27
A. (x + 27)(x2 - 1) B. (x - 3)(x2 + 9) C. (x - 3)(x2 + 3x + 9) D. (x + 3)(x2 - 3x + 9)