26. Please solve all parts

For the function f(x,y) - #5y~+ 2x-, find f(1, - 2), f( - 3,5), f( - 1. - 3), and f(0,6) f(1, -2) = (Type an exact answer, using radicals as needed.) f( - 3,5) = (Type an exact answer, using radicals as needed.) f(-1.-3)= |(Type an exact answer, using radicals as needed.) f(0.6) = (Type an exact answer, using radicals as needed.]