Answer:
y = x + 1
See below.
Explanation:
To find the slope intercept form of a line, calculate the slope first.
![m = (y_2-y_1)/(x_2-x_1) =(4-2)/(3-1)=(2)/(2) = 1](https://img.qammunity.org/2020/formulas/mathematics/middle-school/6coaubnvggp05s0v4xm6gk2of9itf6amyn.png)
So the slope is 1. Substitute m = 1 and (1,2) into the point slope form. Then simplify to slope intercept form.
y - 2 = 1 (x - 1)
y - 2 = x - 1
y = x + 1