Question

Find the relation between x and y if the point(x,y),(1,2) and (7,0) are collinear

Answer 1

Now , Slope =∆Y/∆X = -1/3 , y = mx + c , c = 2 +(1/3)= 7/3 , y = (-1/3)x +(7/3) , y=(7-x)÷3 , 3y= 7- x , 3y+x =7

The Correct answer is 3y+x=7