normally tables are like this
x,y
1,2
3,4
etc
where 1 collumn is x and one is y values
an easy way is, notice how they all equal y
just sub values for x and get y values when you evaluate
so first one
y=2x
if x=0, y=0
if x=1 y=2
x=2,y=4
x=3,y=6, etc
table is like
x,y
0,0
1,2
2,4
3,6
etc
y=3-x
if x=0, y=3
if x=1, y=2
if x=2, y=1
if x=3, y=0
etc
table is
x,y
0,0
1,2
2,1
3,0
etc
y=x-4
if x=0, y=-4
if x=1, y=-3
if x=2, y=-2
if x=3, y=-1
etc
table is
x,y
0,-4
1,-3
2,-2
3,-1
etc
y=10/x
we cannot divide by 0 so there is no x=0
if x=1, y=10
if x=2, y=5
if x=3, y=10/3
if x=4, y=5/4
table
x,y
1,10
2,5
3,10/3
4,5/4
etc
y=x/2
if x=0, y=0
if x=1, y=1/2
if x=2,y=1
if x=3, y=3/2
table
x,y
0,0
1,1/2
2,1
3,3/2
etc
y=x+3
if x=0,y=3
if x=1,y=4
if x=2,y=5
if x=3,y=6
etc
table
x,y
0,3
1,4
2,5
3,6
etc