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Write the equation of the line that passes through the points −6,1) and (1,2). Put your answer in fully simplified point-slope form, unless it is a vertical or horizontal line.

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Hi there! I'll help you solve this problem!

We are asked to find the equation of the line when we're given the following two points:

  • (-6,1) and (1,2)

First we'll find the slope of the line using the slope formula.


\sf{m=\cfrac{y_2-y_1}{x_2-x_1}}

Substitute the data:


\sf{m=\cfrac{2-1}{1-(-6)}}


\sf{m=\cfrac{1}{1+6}}


\sf{m=\cfrac{1}{7}}

Therefore the slope is 1/7.

Now we'll take the first point and substitute the slope and the point into the point-slope formula:


\large\boldsymbol{\sf{y-y_1=m(x-x_1)}}


\boldsymbol{\sf{y-1=\cfrac{1}{7}(x-(-6)}}

Simplify:


\boldsymbol{\sf{y-1=\cfrac{1}{7}(x+6)}}

Therefore, this is our point slope equation.


\dotfill

Best wishes!

User Denu
by
7.6k points

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