2 years ago

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

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