anagmimbela anagmimbela
  • 02-02-2020
  • Mathematics
contestada

Determine whether the three points are collinear.
(0, - 10). (-3,- 13), (2,-8)

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gmany
gmany gmany
  • 02-02-2020

Answer:

YES. These points are collinear.

Step-by-step explanation:

If three points are collinear, then the slopes are the same.

The formula of a slope:

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

For (0, -10) and (-3, -13):

[tex]m=\dfrac{-13-(-10)}{-3-0}=\dfrac{-13+10}{-3}=\dfrac{-3}{-3}=1[/tex]

For (-3, -13) and (2, -8):

[tex]m=\dfrac{-8-(-13)}{2-(-3)}=\dfrac{-8+13}{2+3}=\dfrac{5}{5}=1[/tex]

We can check the last pair (0, -10) and (2, -8):

[tex]m=\dfrac{-8-(-10)}{2-0}=\dfrac{-8+10}{2}=\dfrac{2}{2}=1[/tex]

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