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Alex
2 years ago
15

What is the slope of the line through (- 1, - 7) and (3, 9) ?

Mathematics
1 answer:
Fynjy0 [20]2 years ago
5 0

Answer:

C. 4

Step-by-step explanation:

<u>Use the slope formula:</u>

m=\frac{y2}{x2} -\frac{y1}{x1}

m = the slope.

<u>Substitute the values into the formula:</u>

\frac{9}{3} -\frac{-7}{-1} =\frac{?}{?}

<u>Solve:</u>

\frac{9}{3} -\frac{-7}{-1} =\frac{16}{4}

<u>Simplify 16/4:</u>

\frac{16/4}{4/4} =\frac{4}{1}=4

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