How do I do #1 ? Help!!

1) First find the multiplier.
Look at the 0 and 1st term you have 5 as the 0 and 3 as the 1st term.
2)Ask how do we get from 5 to 3?
3)Lets make a linear equation: y=mx +b
4)Use the values that you have to create your equation.
Note:For the x value just plug in the x value from your table.
Ex.