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Write an equation in point slope form line passing through (-4,3), (3,-4)
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User Valexa
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1 Answer

4 votes

Answer:


\large\boxed{y-3=-(x+4)}\\or\\\boxed{y+4=-(x-3)}

Explanation:

The point-slope form of an equation of a line:


y-y_1=m(x-x_1)

m - slope

(x₁, y₁) - point on a line

The formula of a slope:


m=(y_2-y_1)/(x_2-x_1)

We have two points (-4, 3) and (3, -4).

Substitute:


m=(-4-3)/(3-(-4))=(-7)/(7)=-1

Put the value of a slope and the coordiantes of the point (-4, 3) or (3, -4) to the equation of a line:

for (-4, 3)


y-3=-1(x-(-4))\\\\y-3=-(x+4)

for (3, -4)


y-(-4)=-1(x-3)\\\\y+4=-(x-3)

User Mithlesh Kumar
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5.4k points