baileyriley14 baileyriley14
  • 16-03-2017
  • Mathematics
contestada

Which of the following are point-slope equations of the line going through (-3, -5) and (2, 4)

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apologiabiology
apologiabiology apologiabiology
  • 16-03-2017
pointn slope

y-y1=m(x-x1)
a point is (x1,y1) and the slope is m
the slope between (x1,y1) and (x2,y2) is (y1-y2)/(x1-x2)
given
(-3,-5) and (2,4)
slope=(-5-4)/(-3-2)=-9/-5=9/5

a point is either (-3,-5) or (2,4)
so it is either
y+5=9/5(x+3) or
y-4=9/5(x-2)
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