Consider the following functions. f={(−2,1),(2,−4),(4,−4),(−1,1)} and g={(−1,−4),(2,1)} Step 1 of 4 : Find (f+g)(2).

Question

Consider the following functions.

f={(−2,1),(2,−4),(4,−4),(−1,1)}

and

g={(−1,−4),(2,1)}

Step 1 of 4 : Find (f+g)(2).

Answer 1

f(2) means "what is y if x = 2? Same for g(2).

f(2) = -4

g(2) = 1

(f + g)(2) = - 4 + 1 = -3