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Elenna [48]
3 years ago
15

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

Mathematics
1 answer:
babunello [35]3 years ago
4 0

Answer:

k= -1

Step-by-step explanation:

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

m=\frac{y_2-y_1}{x_2-x_1}\\\\-7=\frac{-8-k}{5-4} \\\\-7 = \frac{-8-k}{1}\\\\-7=-8-k\\\\k = -8+7\\\\k=-1

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