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

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

asked
User Scubabuddha
by
7.7k points

1 Answer

1 vote


k = (y2 - y1)/(x2 - x1)

k = ( - 4 - ( - 3))/( - 12 - ( - 9))

k = - (1)/(21)

direct \: variation \: equation \: is


y \: or \: k = - (1)/(21) x
answered
User Hzpz
by
8.8k points
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