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254 • Chapter 6: Examples from Calculus1.41.210.8y(t)0.60.40.25 10 15 20tDEplot can also plot solutions to a set of differential equations.> eq1 := diff(y(t),t) + y(t) + x(t) = 0;eq1 := ( d y(t)) + y(t) + x(t) = 0dt> eq2 := y(t) = diff(x(t), t);eq2 := y(t) = d dt x(t)> ini1 := x(0)=0, y(0)=5;ini1 := x(0) = 0, y(0) = 5> ini2 := x(0)=0, y(0)=-5;ini2 := x(0) = 0, y(0) = −5The system {eq1, eq2} has two dependent variables, x(t) and y(t),so you must include a list of dependent variables.> DEplot( {eq1, eq2}, [x(t), y(t)], -5..5,> [ [ini1], [ini2] ] );