Respuesta :
Since the line goes through (0, 0), it can be described byÂ
  y = kx
You are given the point (12, 72), so you know
 72 = 12k
 6 = k . . . . . . . divide by 12
Then the equation of the line is ...
  y = 6x
  y = kx
You are given the point (12, 72), so you know
 72 = 12k
 6 = k . . . . . . . divide by 12
Then the equation of the line is ...
  y = 6x