9514 1404 393Answer:
 y=4x-6
Explanation:
The line intersects the y-axis at y=-6, so that is the value of 'b' in the slope-intercept form.
The horizontal difference between marked points is 1 unit; the vertical difference is 4 units. That means the slope is . . . 
 m = rise/run = 4/1 = 4
Filling in these values (m=4, b=-6), we get ...
 y = 4x -6