Answer:
y=2/5x+4 1/5
Step-by-step explanation:
first you have to find y=mx+b so to find m you use the equation
y2-y1/x2-x1
so pick 2 points on the line such as 4-2/10-5 and you get 2/5
next plug in on point to the equation y=2/5x+b
so 5=2/5 (2) + b; to find b
5=4/5 +b
minus 4/5 on each side
4 1/5 = b
so you get the equation y=2/5x+4 1/5
then plug in the third point
hope that helps