Mathematics
KarlTarrants
19

the points (-1,2) and (4, y) have a slope of -4/5). What is the y coordinate of the point (4, y)?

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(1) Answers
kristen4tice

y-2 / 4-(-1) = -4/5 ⇒ y-2 / 5 = -4/5 ⇒ 5(y-2) = -4 * 5 ⇒ 5y - 10 = - 20 ⇒ 5y = -20 + 10 = -10 ⇒ y = -10/5 = -2 Y coordinate of (4,y) is -2 Hope it helps!

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