Question 1053397
***Using point-slope form, 
{{{y - y[1] = highlight_green(m)(x - x[1])}}}
y- 1 = (1/2)(x-3)
y  - 1= (1/2)x -3/2
y = (1/2)x -1/2
Or
x - 2y = 1
P(0,.5) and P(1,3) on this Line
{{{drawing(300,300,   -6, 6, -6, 6, grid(1), 
circle(3,1,0.3),

circle(0,-.5, 0.3),

graph( 300, 300, -6, 6, -6, 6,0,.5x-.5) ) }}}