Hi

line containing points (-1,11) and (-2,2). m = 9/1

 y =  9x + b  |using pt(-2,2) to solve for b

 2 = -18 + b  

 20 = b

 y = 9x + 20

 9 = 9x + 20  | substituting y =9 to find x value

-11/9 = x

coordinates of point d are (-11/9,9)



 

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