so slope intercept for is y=mx+b
mx being the slope and the b being the y intercept
So you have to find the slope first which is 1/1 or 1
Now you have to find the y intercept which is where the line passes through the y line. The y intercept is 6.
So your the ANSWER IS:
y= -1x +6
(The one is negative because the slope is going down, or is it negative)
Hope this helps have a nice day!!! :))))