Answer
y=2x
Explanation
The slope is 2 because to find slope you use the formula m= rise/run.
To use the formula correctly you first find two points on the graph where the line crosses the grid. For example, for this problem I used (1, 18) and (2, 36). Then after finding the two points, from (1, 18) you move 1 to the right and 2 up to get to (2, 36). Therefore the run is 1 and rise is 2. The run is the amount you go left or right and the rise is the amount you go up and down. Finally, using the formula rise/run you put the rise, 2 over 1 which is 2. So the slope is 2.