Question

I need help with all of them

Answer 1

(f + g)(0) = f(0) + g(0) = 2 + 4 = 6

(f - g)(0) = f(0) - g(0) = 2 - 4 = -2

(fg)(0) = f(0)g(0) = 2(4) = 8

(f/g)(0) = f(0)/g(0) = 2/4 = 1/2