Question

Write a linear equation relating X and Y for each table

Answer 1

Use desmos calculator
Desmos will help you

Answer 2

First in number a

(0,2) (3,8) (6,14) (10,22)

Now format a graph and mention numbering from 0, 1, -1 both x and y axis and plot the coordinates. Draw lines and find where the lines intersects. That coordinate is the answer.