Question

for a medal

Answer 1

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) =
4
5
9

Answer 2

can u help me

Answer 3

The notation simply gives you 2 functions with the brackets telling you the values of
(x, F(x))
and
(x, G(x))

so for instance when
x= 4

you can read that
F(4)=6
and
G(4) = 7

so - as a start can you write down
F(2)

and
G(2)

(look in the brackets for (2,??)

Answer 4

ok

Answer 5

so...

what is F(2) ??

Answer 6

idk

Answer 7

I gave you examples above

look in the list after F{

I showed oyu that (4,7) is in th e list
The meaning of this is
if x = 4 then F(4) = 7

so can you do the same for
if x=2 then F(2) =?

Answer 8

what is the number that is inside the brackets with (2,?)

Answer 9

idk

Answer 10

I cannot be more clear than above.

All you need to do is look in THIS list
{(0, 1), (2, 4), (4, 6), (6, 8)}

and tell me the number that is inside the brackets with (2,?)

Answer 11

oh 4

Answer 12

OK good

so that means that
F(2) = 4


now do EXACTLY the same with the list after G=

to find the number inside teh brackets (2,??)

Answer 13

5

Answer 14

Good

so now oyu know that
F(2) = 4
G(2) = 5

Now you need
(F + G) (2) =

Thgis means oyu just add the other 2 numbers...

Answer 15

9 right

Answer 16

Correct
The main difficulty in this is understanding the notation

Well done

Answer 17

yep it is