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Write the equation of the line in Point-Slope Form

Write the equation of the line in Point-Slope Form-example-1
User Excray
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6 votes

17.

The point-slope form:


y-y_1=m(x-x_1)

We have slope=m=8, and the point (-5, -3). Substitute:


y-(-3)=8(x-(-5))\\\\\boxed{y+3=8(x+5)}


18.

The formula of a slope:


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

We have the points (3, 4) and (15, 10). Substitute:


m=(10-4)/(15-3)=(6)/(12)=(1)/(2)

The point-slope form:


\boxed{y-4=(1)/(2)(x-3)}

or


\boxed{y-10=(1)/(2)(x-15)}

User Faizan Younus
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