spicylalaa spicylalaa
  • 13-12-2017
  • Mathematics
contestada

A direct variation function contains the points (-9,-3) and (-12,-4). Which equation represents a function?

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Zoey04 Zoey04
  • 17-12-2017

[tex]k = \frac{y2 - y1}{x2 - x1} [/tex]
[tex]k = \frac{ - 4 - ( - 3)}{ - 12 - ( - 9)} [/tex]
[tex]k = - \frac{1}{21} [/tex]
[tex]direct \: variation \: equation \: is [/tex]

[tex]y \: or \: k = - \frac{1}{21} x[/tex]
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