Answer:

Explanation:
This is the slope-intercept form 
 where
 where 
 stands for the slope and
 stands for the slope and 
 stands for the y-intercept. The slope in the picture is 9/1 or just 9 simply. The y-intercept, or where the line crosses the y-axis is at 0 so you don't have to write if there's a 0.
 stands for the y-intercept. The slope in the picture is 9/1 or just 9 simply. The y-intercept, or where the line crosses the y-axis is at 0 so you don't have to write if there's a 0.
Hope this helps