Answer: y=3x
Explanation:
To write an equation, the first step is to look at the rise/run. In this graph, the rise is 3 and the run is 1. 3 divided by 1 is still 3 so in the equation mx+b, the m, also known as the slope, would be 3.
3x+b
And the b is the y-intercept where the line crosses the y axis.
3x+0=y
Therefore;
3x=y