Question 1098779
.
Find the instantaneous rate of change of f(x)=x^2-(2/x)+4 at x=-1 
A. -7 B. -4 C. 0 D. 4 E.7 
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The correct answer is  0  (zero).


Option  C).



{{{graph( 330, 330, -3.5, 3.5, -2.5, 10.5,
          x^2-(2/x)+4
)}}}


Plot y = {{{x^2-(2/x)+4}}}