Read the section "Sections 1.1-1.3:" and respond the following questions. 1. Classify each equation as ordinary differential equation (ODE) or as partial differential equation (PDE), give the order, and indicate the independent and dependent variables. If the equation is an ordinary differential equation, indicate whether the equation is linear or nonlinear. a. b. d. e. du du ox² + =0 d³m m(5+6n) dn n(2–4m) 4y" + xy' = 6y³ ry"+cosx(y) =rẻ

3.

Each graph below is a slope field for one of the differential equations. Beneath each slope field, write the letter ofthe differential equation in the blank. There is only one correct differential equation for each slope field. AssumeA > 0 and B < 0 are constants.  I understand the concept of plugging in the values of x and y to find dy/dx. I didn't understand what to do because of A & B. Do I just set A as a number great than 0?  And B as a number less than 0 and plug and chug for dy/dx?