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Write an equation in point-slope form of the line through points (7,6) and (9, 2). Use (7,6) as the point (x1, y1).

A. (y + 6) = −2(x + 7)
B. (y + 6) = 2(x + 7)
C. (y − 6) = −2(x − 7)
D. (y − 6) = 2(x − 7)

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khansanasir360

Hi there,

The correct answer is C. Because you have to find slope first. The slope formula is Y2-Y1/X2-X1. You plug in as 2-6/9-7 then get -4/2. Finally -2 is your slope. Now you use point slope form equation which is (Y-Y2)=M(X-X2). You plug in as y-6= -2(x-7). Hope you can understand it.

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