Question 852555
***Using point-slope form, 
{{{y - y[1] = m(x - x[1])}}}
{{{y - 1 = highlight(1/6)(x - 12)}}}
{{{y - 1 = highlight(1/6)x - 2)}}}
{{{y = highlight(1/6)x - 1)}}}
f(x) = (1/6)x - 1