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Helen [10]
2 years ago
7

The points (-3 r) and (9 2) lie on the line with slope 1/4. find the missing coordinate

Mathematics
1 answer:
Darya [45]2 years ago
8 0

Answer: -1

Step-by-step explanation:

I assume the points are (-3, r) and (9,2).

Substituting into the slope formula,

\frac{r-2}{-3-9}=\frac{1}{4}\\\\\frac{r-2}{-12}=\frac{1}{4}\\\\r-2=-3\\\\r=-1

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