Question 1059520
I would get it into the slope intercept form
so I could identify the slope and y-intercept
{{{ -x - 2y = -1 }}}
I can multiply both sides by {{{ -1 }}}
{{{ x + 2y = 1 }}}
Subtract {{{ x }}} from both sides
{{{ 2y = -x + 1 }}}
Divide both sides by {{{ 2 }}}
{{{ y = -(1/2)*x + 1/2 }}}
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The slope is {{{ -1/2 }}}
y-intercept is {{{ 1/2 }}}
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Here's the plot:

{{{ graph( 400, 400, -6, 6, -6, 6, -(1/2)*x + 1/2 ) }}}