Find the derivative. d 3 VX X (8-1)=0 Find an equation of the line tangent to the graph of f(x)=- 1 a) at (1.1); b) at 81 c) (12 (2) c) at 2, 16 a) The equation of the tangent line at (1.1) is (Type an equation using x and y as the variables ) The median weight of a boy whose age is between 0 and 36 months can be approximated by the function W(t) = 9.41 + 1 451 -0.0056 +0.0002581%. where t is measured in months and w is measured in pounds. Use this approximation to find the following for a boy with median weight in parts a) through c) below a) The rate of change of weight with respect to time w"(t)- In t years, the population of a certain city grows from 600,000 to a size P given by P(t) = 600,000 + 600012 dP a) Find the growth rate, dt b) Find the population after 10 yr. c) Find the growth rate at t= 10. d) Explain the meaning of the answer to part (c) .. a) dP dt =