3 years ago

What is the slope of the line that passes through the points (-2, 7) and (2,-5)?

Mathematics

1 answer:

Deffense [45]3 years ago

4 0

Answer:

Denote that line: y = ax + b

Line passes (-2, 7) and (2,-5):

=> -2a + b =7

=> 2a + b = -5

Add both side of above equations:

=> 2b = 2

=> b = 1

=> a = (-5 - 1)/2 = -3

=> Slope a = -3

Hope this helps!

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