The question is asking you to find the equation of the graph.
We can see that the graph increasing at a rate of 1 up and 1 right. This gives us a slope of 1, which can also be represented as
.
At this point, we have
. The remaining number of the intercept can be found by identifying the y-intercept. This can be checked by finding where the graph crosses the y-axis.
We can observe that the graph crosses through (0,0) meaning our y intercept is 0.
Our equation should be
, or
Lastly, we simplify the fractions in the equation to get
, or