Answer:
The first table is proportional
Step-by-step explanation:
The first table's equation is y=8x. That is proportional because the equation is followed throughout the whole table.
The second table is not. You cannot just add 1 more per every column. So, the second table is not proportional.
yes it is a rational number
y= 1/2x - 8
(b+a)3 hope this helps