Answer is y = - 5/6x + 6
Step by step
We see on the graph two coordinates
(6,1) and (0, 6)
Using these points we can find slope
y2 - y1 over x2 - x1
6-1 over 0 -6
5 over -6 = - 5/6 slope (m)
We know the y intercept (b) is 6 based on the graph
Slope intercept form is y = mx+ b
y = - 5/6x + 6