What is the slope of the line on the graph?
https://snag.gy/Lf7WZ5.jpg
f(x) =y=1/2 x -2 So the slope = 1/2
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We have these points on the graph ( 0, -2) and ( 4, 0)
The slope is [ 0 - -2 ] / [ 4 - 0 ] = 2 / 4 = 1 / 2