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What is the equation of the line that passes through the points (2, -1) and (6, 1)? o y = 1/2 X-2 y= 2x-5 oy – 2x – 1

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## Answers ( )

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Answer:(a) y = 1/2x -2

Step-by-step explanation:You can quickly determine that none of the equations with ±2x will work by trying the second point, (6, 1), in them. This only leaves …

y = 1/2x -2__

Or, you can use the slope formula …

m = (y2 -y1)/(x2 -x1)

m = (1 -(-1))/(6 -2) = 2/4 = 1/2

This tells you the equation will be of the form …

y = 1/2x +b

Only one choice matches:

y = 1/2x -2