Given:
Let the two points from the table (8,13) and (10,15).
To find the missing value:
Here, x increases when y increases,
When x=8, then y=13
When x=10, then y=13+2
That is y=15
When x=12, then y=15+2
That is, y=17
Similar way,
When x=14, then y=17+2
That is, y=19.
Hence, the missing value is y=19.
And the general equation is y=x+5.
