Answer:
y=2x+8
Explanation:
y=mx+b is slope-intercept form
y - y-coordinate
m - slope
x - x-coordinate
b - y-intercept
If the slope is 2, then m will be replaced by 2. The y-intercept is the pair of points in which the x-coordinate is 0. There is probably a quicker way to solve this, but this is how I ended up finding what y-coordinate corresponds with the x-value of 0.
(6,20)
(5,18)
(4,16)
(3,14)
(2,12)
(1,10)
(0,8)
Since the y-intercept is (0,8), b will be 8.