Answer :

y=.5x+3               y=.5x+3
4=.5x+3               y=.5*2+3
-3      -3               y=1+3
1/.5=.5x/.5           y=4
2=x
The ordered pair (2,4) does satisfy the function.
raney

y=mx+b              and after u graph it ,it will appear that (2,4) is don't satisfy the function  cause it is not in the line

y=1/2 x+3

m=1/2(1 up and 2 to the right )

b=3