Answer
$y=12+8x$
Work Step by Step
As the value of $x$ increases by $1$, the value of $y$ changes as follows:
$12, 20, 28, 36$
The values have difference between each other as follows:
$+8, +8, +8, +8$
Note, that when $x=0$, $y=12$, so $12$ is the base number to increment.
So we can write the following equation to represent the pattern:
$y=12+8x$
