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Vlada [557]
4 years ago
12

PLS HELPPPP Write a linear equation in point slope form for the line that goes through (-1,3) and (1,-9)

Mathematics
1 answer:
Anestetic [448]4 years ago
4 0

Solution:

First find the slope

Slope=\frac{y2-y1}{x2-x1}\\Slope=\frac{(-9)-(3)}{(1)-(-1)}\\Slope = \frac{-12}{2}\\Slope=-6\\

Secondly, write the equation

y=m(x-xo)+yo\\y=-6(x-1)+(-9)\\y=-6x+6-9\\y=-6x-3

Answer:

y=-6x-3

Check:

(-1,3)\\y=-6(-1)-3\\y=6-3\\y=3

(1,-9)\\y=-6(1)-3\\y=-6-3\\y=-9

<em>Hope this was helpful.</em>

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