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jonny [76]
2 years ago
8

The points (4,7) and (r. – 5) lie on a line with slope – 3. Find the missing coordinate r ​

Mathematics
1 answer:
dusya [7]2 years ago
7 0

Answer:

r=\frac{14}{3}

Step-by-step explanation:

Set up an equation and solve for r using the formula for slope:

\frac{5-7}{r-4}=-3\\ \\-2=-3(r-4)\\\\-2=-3r+12\\\\-14=-3r\\\\\frac{14}{3}=r

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