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) =

Can someone help me figure this out please!! Really Confused!!

Answer 1

(f + g)(x) = f(x) + g(x)

Answer 2

SO I can choose any ordered pair??

Answer 3

no, find whats f(2) and g(2)

Answer 4

ok thanks

Answer 5

could u find f(2) ?

Answer 6

whats the equation???

Answer 7

no equation, you have to find it from the set

Answer 8

how do you find it from the set?

Answer 9

f(2) is the value at x=2
so search for that pair,which has 1st element = 2

Answer 10

and....

Answer 11

which pair did u get?

Answer 12

did u get it as (2,4) for f(2)

Answer 13

similarily find for g(2)

Answer 14

@aussy123 which pair in f(x) did YOU get with 1st element as 2 ?

Answer 15

(2,4)(2,5)

Answer 16

BUT, (2,5) is in G
isn't it?

Answer 17

yea so (2,4) is chose (2,5) for G

Answer 18

good, so f(2) will be 4 ok?
and g(2) = 5
for (f+g)(2)
just add them
4+5=?

Answer 19

9 but is it just saying
f(2)+g(2)=y;
y1+y2=w/e

Answer 20

whats w or e or w/e ??
9 is the correct answer.

Answer 21

whatever = w/e

Answer 22

but is
f(2)+g(2)=y;
y1+y2=w/e
The way to solve it

Answer 23

ok :)
y1=4,y2=5
y1+y2=4+5=9

Answer 24

THANKS!!

Answer 25

welcome :)