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zepelin [54]
3 years ago
5

What are the slope, m, and the y-intercept, B, of a line that pases through the points (-2,1)and (8,-5)?

Mathematics
2 answers:
iris [78.8K]3 years ago
7 0

Step-by-step explanation:

m \: = \: -3/5  \: and \:  b \: = \: -1/5

RideAnS [48]3 years ago
6 0

Answer:

  • B. m= -3/5 and b= -1/5

Step-by-step explanation:

<u>Given points:</u>

  • (-2, 1) and (8, -5)

<u>Slope is:</u>

  • m = (y2 - y1)/(x2 - x1)
  • m = (-5 - 1)/(8 - (-2)) = -6/10 = -3/5
  • m = -3/5

<u>Use formula y = mx + b, substitute x = -2, y = 1, m = -3/5, find y-intercept b:</u>

  • 1 = (-3/5)*(-2) + b
  • 1 = 6/5 + b
  • b = 1 - 6/5
  • b = - 1/5

Correct option is B.

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