Question 190320
what is the equation of the line passing through (-2, 1) and having a slope of 1/2? 
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Use
y-y1 = m*(x-x1) where (x1,y1) is the point and m is the slope.
y-1 = (1/2)*(x+2)
y = (1/2)x + 2  slope-intercept form
x - 2y = -4  standard form