Question

Given:f={(0,1)(2,4)(4,6)(6,8) and g={(2,5)(4,7)(5,8)(6,9)(7,5)}
(F+G)(2)=

Answer 1

Answer:(F minus G) of (6) - correct?

Step-by-step explanation:

(6,8) is in F so F(6) = 8

(6,9) is in G so G(6) = 9

(F - G)(6) = 8 - 9 = -1

Answer 2

By definition,

$(f+g)(2)=f(2)+g(2)$

The values given tell us that

$f(2)=4,\quad g(2)=5$

So, we have

$(f+g)(2)=f(2)+g(2)=4+5=9$