The errors are as follows:
Error using inlineeval (line 14) Error in inline expression ==> ellipseplot(3.5,2.0,8.5,3) Too many output arguments. Error in inline/feval (line 33) INLINE_OUT_ = inlineeval(INLINE_INPUTS_, INLINE_OBJ_.inputExpr, INLINE_OBJ_.expr); Error in fplot (line 101) x = xmin; y = feval(fun,x,args{4:end}); Error in Functions_1_HW (line 24) fplot('ellipseplot(3.5,2.0,8.5,3)',[-20,20])