Answer
$y=-\frac{1}{3}x+1$
Work Step by Step
Find the slope of the line using the points on the line (0,1) and (3,0).
The slope is
$m= \frac{1-0}{0-3} =-\frac{1}{3}$
Wth a y intercept of 1, the slope-intercept form of the line's equation is $y=-\frac{1}{3}x+1$.