Answer
$ y = 8.5x $
This line does not have an intercept in the formula, so the intercept is 0. The slope is the hourly wage and that a person would earn 8.50 for each hour they worked. Since the intercept is 0, this means that there no bonus (or guaranteed money) for a worker.
Work Step by Step
$m = (25.5-8.5)/(3-1) = 17/2 = 8.5$
$y = mx+b$
$8.5 = 8.5 * 1 +b $
$8.5 = 8.5 + b$
$0 = b$
