if f = {(0,2),(2,6),(3,15),(4,9)} and g = {(3,4),(2,1),(4,6),(5,9)} what is (f*g)(3)

Answer 1

From the ordered pairs listed for each function, we see that:

f(3) = 15

g(3) = 4

(f·g)(3) = f(3)·g(3) = 15·4 = 60