wnoe2004 wnoe2004

03-04-2020
Mathematics

contestada

Write the equation of a line whose slope is -2 and goes through the point (1,-1)

Respuesta :

andreamoss andreamoss

03-04-2020

Answer:

y= -2x+1

Step-by-step explanation:

y=mx+b

Substitute the ordered pairs into the equation

So:

y= -1 m(slope) = -2 x=1 b=?

-1 = (-2)(1) + b

-1 = -2 +b add 2 on both sides to get b by itself

-1 +2 = b

b=1

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