bestfriends82
bestfriends82 bestfriends82
  • 18-09-2020
  • Mathematics
contestada

show that (-3, 2) (1, -2) and (9, -10) are collinear? ​

Respuesta :

mhanifa
mhanifa mhanifa
  • 18-09-2020

Answer:

See below

Step-by-step explanation:

See attached

Given points:

  • (-3, 2), (1, -2) and (9, -10)

Method 1

  • Plot points on a graph and connect them, if they make a straight line, then they are collinear

Method 2

  • Chose 2 pairs of points and find a slope, if slopes are equal then they are collinear
  • m1 = (-2 - 2)/(1+3) = -1
  • m2 = (-10 +2)/(9 - 1) = -1

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