We have to find the line equation that gives us the value of Y for some value of X
in this case, whe have to find the line equation so that y = 5 when x = 0, y = 7 when x = 1, etc.
the line equation is y = mx + b in general
when x = 0, y = b, so for the first table b = 5 and for the second table b = 0;
the difference between each value of Y is 2 (5, 7, 9, 11) so the m value for the first table is 2
and for the second table, the difference between each Y value is 13, so m = 13 for the second table
Therefore, for the first table the equation is: Y = 2X + 5
and for the second table, te equation is Y = 13X