Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the problem.An observer to a rocket launch was 800 ft from the take-off position. The observer found the angle of elevation of the rocket as a function of time to be 
Therefore, the height h (in ft) of the rocket was 
Find the time rate of change of height at 
A. 240 ft/s B. 400 ft/s C. 1100 ft/s D. 6700 ft/s
Mathematics
Sketch by hand the graph of the function. Give the coordinates for the vertex.y = x2 - 4
A. vertex: (-4, 0)
B. vertex: (0, 4)
C. vertex: (0, -4)
D. vertex: (0, -4)
Mathematics
For the pair of functions, find the indicated domain.f(x) = 2x - 5, g(x) = 
Find the domain of f/g.
A. (-4, 4) B. (-4, ?) C. [4, ?) D. [0, ?)
Mathematics
If the given sequence is a geometric sequence, find the common ratio.
, 
, 
, 
, 
A. 2
B. 9
C. 
D. 
Mathematics