do1213
21.07.2020 •
Mathematics
50pts + brainliest pls find the equation of straight line passing through (1,-1) and (3,-5) pls help im in online class and i have to answer pls
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Ответ:
Step-by-step explanation:
slope=(y2-y1)/(x2-x1)=(-5-(-1))/(3-1)=(-5+1)/2=-4/2=-2
y-y1=m(x-x1)
y-(-1)=-2(x-1)
y+1=-2(x-1)
y+1=-2x+2
y=-2x+2-1
y=-2x+1
Ответ: