The points (-6, 4) and (-4, r) lie on a line with slope 3. Find the missing coordinate r.

asked Aug 24, 2022 121k views

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$\\ \sf\longmapsto m=3$

$\\ \sf\longmapsto (r-4)/(-4+6)=3$

$\\ \sf\longmapsto (r-4)/(2)=3$

$\\ \sf\longmapsto r-4=6$

$\\ \sf\longmapsto r=6+4$

$\\ \sf\longmapsto r=10$

MauroPorras answered Aug 29, 2022

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