All three points displayed are on line. Find an equation relation x and y

y=0.5x+1.5

Step-by-step explanation:

fisrt take two of the pints and find the slop using the correct formula. i will use points (6,9) and (3,3) 6-3=3 and 9-3=6 3 divided by 6 is 0.5. zero point five is our slope. now we find the y-interept. i will use the point (3,3). our equation now is 3=0.5x3+b ill take 0.5 and subrat 0.5 from it, to cancel it out and get zero. now i will multiply 3 by 0.5 to get 1.5. now i will subtract 1.5 from 1.5 to cancel it out and get zero. i will now subtract 1.5 from 3 to get 1.5. this is now our y-intercept. lastly we put these numbers into an equation. y=0.5x+1.5

hope this helped :)