The average price of a ticket to a baseball game can be approximated by p(x)=0.03x^2 +0.55x+9.67, where x is the number of years after 1991 and p(x) us in dollars. a) Find p(4) b) Find p(14) c) Find p(14)-p(4) d) Find (p(14)-p(4))/(14-4) , and interpret this result.

Find the local maximum and minimum values and saddle points of the function. If you have three-dimensional graphing software, graph the function with a domain and viewpoint that reveal all the important aspects of the function
$f(x,y)=x^3-6xy+8y^3$

$\frac{1}{\sec <!--\; \; -->(x)}$ in derivative?

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