pmlee2020 pmlee2020
  • 15-01-2020
  • Mathematics
contestada

Line AB goes through the points A (0,-4) and B (6,2). Which equation represents line AB?​

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Аноним Аноним
  • 15-01-2020

Answer:

y = x - 4

Step-by-step explanation:

Base on point A we have X = 0 and Y = -4

then we have this equation:

Y = ax + b

<=>-4 = a*0 + b

<=>-4 = b

so equations have the form of Y = ax - 4

Base on point B we have X = 6 and Y = 2

Y = ax - 4

<=>2 = a* 6 - 4

<=>a * 6 = 6

<=>a = 1

so equations have the form of Y = 1x - 4 = x - 4

so the equations represents line AB is Y=x - 4

Done :))

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