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Alik [6]
3 years ago
12

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

Mathematics
1 answer:
Ilya [14]3 years ago
9 0

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

y \: or \: k =  -  \frac{1}{21} x
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