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

asked Dec 10, 2023 26.4k views

3 votes

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11 votes

Answer:

r=(14)/(3)

Explanation:

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

$(5-7)/(r-4)=-3\\ \\-2=-3(r-4)\\\\-2=-3r+12\\\\-14=-3r\\\\(14)/(3)=r$

Reed Jones answered Dec 16, 2023

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