Answer:
y = x + 1
See below.
Step-by-step explanation:
To find the slope intercept form of a line, calculate the slope first.
[tex]m = \frac{y_2-y_1}{x_2-x_1} =\frac{4-2}{3-1}=\frac{2}{2} = 1[/tex]
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