holcombkaylee holcombkaylee
  • 03-10-2018
  • Mathematics
contestada

Which one is an equation for the line that goes through (-1,4) and (-4,2)

Respuesta :

cmoreno511 cmoreno511
  • 03-10-2018

First find slope with slope formula and your two points .

(-1,4) and (-4,2)


M=y2-y1/x2-x1

M=2-4/-4-(-1)

M=-2/-3

M= 2/3


Now substitute your slope and one of the points to equation on the line formula to find b.


Y=mx+B and using m=2/3 and (-1,4).


Y=mx+b

4=2/3(-1)+B

4= - 2/3+b

4+ 2/3=B

14/2=B


So now put your answers slope and b to make equation.


Y= 2/3x +14/2


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