For the following rational function, identify the coordinates of all removable discontinuities and sketch the graph. Identify all intercepts and find the equations of all asymptotes.f(x) = 
A. removable discontinuity at (4, 8);
x-intercept: (-4, 0), y-intercept: (0, 4);
no asymptotes
B. removable discontinuity at (-4, -8);
no x-intercept: (4, 0), y-intercept: (0, -4);
no asymptotes
C. removable discontinuity at (-4, -8);
no x-intercepts, y-intercept: 
;
asymptotes: y = 0 and x = 4
D. removable discontinuity at (4, 8);
no x-intercepts, y-intercept: 
;
asymptotes: y = 0 and x = 4
Answer: A
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Solve the problem.After a new firm starts in business, it finds that its rate of profits (in hundreds of dollars per year) after t years of operation is given by 
Find the profit in year 8 of the operation.
A. $64,000 B. $20,300 C. $57,050 D. $46,900
Match the equation with its graph.y = 
? 3x
A. 
B. 
C. 
D. 
Provide an appropriate response.The average of a group of positive numbers is a number.
Fill in the blank(s) with the appropriate word(s).
Multiply.-1000 × (-428.220937)
A. 428,220.937 B. -4,282,209.37 C. -4282.20937 D. 42,822.0937