The points (4,k) and (5,-8) fall on a line with a slope of -7. what is the value of k?

asked Apr 10, 2020 10.0k views

1 vote

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3 votes

Answer:

k= -1

Explanation:

To find k, use the points and the m =-7 in the slope formula:

$m=(y_2-y_1)/(x_2-x_1)\\\\-7=(-8-k)/(5-4) \\\\-7 = (-8-k)/(1)\\\\-7=-8-k\\\\k = -8+7\\\\k=-1$

Koto answered Apr 16, 2020

by Koto

5.2k points

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