Use a graphing utility to graph the function over the indicated interval and approximate any local maxima and local minima. If necessary, round answers to two decimal places.f(x) = 2 + 8x - x2; (-5, 5)
A. local maximum at (-4, 50)
B. local minimum at (-4, 18)
C. local minimum at (4, 50)
D. local maximum at (4, 18)
Answer: D
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Rationalize the denominator.
A. 
B. 10
- 20
C. 10
- 2
D. 10
+ 20
Provide an appropriate response.What fraction is approximately equal to the golden ratio?
A. 
B. 
C. 
D. 
Solve the problem.Find the foci and asymptotes of the following hyperbola:
- 
= 1
A. Foci: (-25, 0), (25, 0); Asymptotes: y = 
x, y = - 
x
B. Foci: (0, -20), (0, 20); Asymptotes: y = 
x, y = - 
x
C. Foci: (0, -25), (0, 25); Asymptotes: y = 
x, y = - 
x
D. Foci: (-25, 0), (25, 0); Asymptotes: y = 
x, y = - 
x
Solve the problem.a). For the field F(x,y) = Mi + Nj and the closed counterclockwise plane curve C in the xy-plane, show that 
ds = 
b). How would the equality change if the closed path is followed clockwise?
What will be an ideal response?