Answer:
The equation of the line is:

Explanation:
The equation of a line has the following format:

In which m is the slope(suppose we have two points, the slope is the change in y divided by the change in x).
b is the y-intercept(the value of x when y = 0).
In this question:
When 
, so 

Passes through the points (0,1) and (1,2). So the slope is 

The equation of the line is:
