Question: ( a ) Evaluate whether the following function is continuous at x = 4 : y = f ( x ) = x 2 -

(a) Evaluate whether the following function is continuous at x=4 :
y=f(x)=x2-x-12x-4
(b) Find the Marginal Revenue (MR) and Average Revenue (AR) for the following demand function: Q=44-4P. Also, comment on the relationship between MR and AR.
( a ) Evaluate whether the following function is

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