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Write the equation of a line with the slope of 2, which contains the point (4,-8).

User Endrju
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1 Answer

3 votes

Answer:

y = 2x-16

Explanation:

To find a line when we know the slope and a point, we can use the point slope formula for a line

y-y1 = m(x-x1)

where the point is (x1,y1) and the slope is m. Substituting the known information in.

y--8 = 2 (x-4)

y+8 = 2(x-4)

We can manipulate this into slope intercept form by distributing the 2

y+8 = 2x-8

and subtracting 8 from each side

y+8-8 = 2x-8-8

y = 2x-16

User Joe Shamuraq
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