Answer
$y - 4 = 3/2 *(x-1)$
$y = 3x/2 + 5/2$
Work Step by Step
Given points are (1,4) and (-1, 1)
$m = (4-1)/(1--1)$
$m = 3/2$
$y-y_{1} = m(x-x_{1})$
$y - 4 = 3/2 *(x-1)$
$y - 4 = 3/2 *(x-1)$
$y - 4 = 3/2*x - 3/2$
$y - 4 + 4 = 3/2*x - 3/2 + 4$
$y = 3x/2 + 5/2$