Use the graph to evaluate the indicated limit or function value or state that it does not exist.Find
f(x) and f(-1).
A is the point 
A. 
; -1
B. 
; does not exist
C. -1; 
D. Does not exist; -1
Answer: A
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Let 
denote sales when a dollars are spent on advertising. If 
is negative, what will be the effect on sales if advertising is increased?
?
A. Sales will increase. B. Sales will decrease. C. Sales will remain the same. D. None of the above
Find the indicated quadratic equation.Find a quadratic equation for which the solutions are 0.8 and 3.
A. 5x2 + 11x + 12 = 0 B. 5x2 + 19x - 12 = 0 C. 5x2 - 19x + 12 = 0 D. x2 + 19x + 12 = 0
Sketch the graph and show all local extrema and inflection points.f(x) = |x2 - 3x|
A. Local maximum: 
Inflection points: (0, 0), (3, 0)
B. Local minima: (0, 0), (3, 0)
Local maximum: 
No inflection points
C. Local minimum: 
No inflection points
D. Local minima: (0, 0), (3, 0)
Local maximum: 
Inflection points: (0, 0), (3, 0)
Find the curvature of the curve r9t) = 3sin4ti+3cos4tj+3tk.
What will be an ideal response?