Posted by **lucy** on Tuesday, June 18, 2013 at 3:37pm.

Write an equation in the form y = mx + b for the line that has a slope of 1/2 and contains the point (12, 3).

- algebra -
**Steve**, Tuesday, June 18, 2013 at 4:08pm
since the slope is constant then for any point (x,y),

(y-3)/(x-12) = 1/2

y-3 = 1/2 x - 6

y = 1/2 x - 3

Get familiar with the various ways of writing the equation of a line:

slope-intercept

point-slope

two-point

two-intercept

standard

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