What are the coordinates of the point that is 1/3 of the way from a(-7, -2) to b(2, 4)?

  A.  (-4, 0)

Step-by-step explanation:

One way to do this is ...

  (1/3) B + (2/3) A = P . . . . the point of interest.

  (1/3)(2, 4) + (2/3)(-7, -2) = (2/3-14/3, -4/3 +4/3)

  = (-12/3, 0) = (-4, 0) . . . . matches choice A

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Another way to do this is to find the difference (D) between the points and add 1/3 of that to A.

  D = B - A = (2-(-7), 4-(-2)) = (9, 6)

  A + 1/3·D = (-7, -2) + 1/3(9, 6) = (-7 +3, -2 +2) = (-4, 0)

0.02040816326

step-by-step explanation:

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