Ican not figure this out at all even my older kids tried

Don't repost because somebody will answer (probably)

we got some points
normally it is like
y=mx+b
find m and x
if we assume they are in a straight line
m is slope and b is y intercept
ok so we see the slope betwee (6,11) and (3,5) is 2
because slope between (x1,y1) and (x1,y1) is (y2-y1)/(x2-x1)

y=2x+b
if we solve for b we get
hmm
5=2(3)+b
5=6+b
-1=b

y=2x-1

so double x and minus 1 to get y
10*2=20, 20-1=19

23=2x-1
24=2x
12=x

the missing points are 19 on right side and 12 on left
rule is y=2x-1 or
2x-y=1