Question 850633
x+2y = 1



2y = 1 - x



2y = -x + 1



y = (-x + 1)/2



y = (-x)/2 + 1/2



y = (-1/2)x + 1/2



The equation is in the form y = mx + b, where m = -1/2 and b = 1/2



So the slope is <font size=4 color="red">-1/2</font>