You can put this solution on YOUR website! what is the graph for the intercept form y=-1/2x-1
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The slope = -1/2 which means "as x increases by 2, y decreases by 1".
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Put your pencil at the intercept (0,-1)
Now move it 2 to the right, then 1 down; put a point there at (2,-2)
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Draw a line thru the two points.
That is the graph you want.
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Cheers,
Stan H.