Question 766005
graph x+y=1
solve the equation for y and we have
y = 1 - x
it is now in standard formula y = mx +b where m is slope and b is y intercept when x is zero.
this is a line with y intercept at (0, 1) and slope -1, also when x = 1, y is 0 - this is the x intercept.
now look at the graph
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{{{ graph( 300, 200, -5, 5, -5, 5, 1 - x) }}}