Question 117446
A slope of 1/2 means that for every two units you go to the right horizontally, the graphed line
goes up 1 unit vertically.
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A slope of 2 means that for every unit you go to the right horizontally, the graphed line
goes up 2 units vertically.
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A slope of -2 means that for every unit you go to the right horizontally, the graphed line
goes down two units vertically.
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And finally:
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A slope of -1/2 means that for every two units you go to the right horizontally, the graphed line
goes down 1 unit vertically.
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The following graph illustrates these four graphed slopes:
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{{{graph(400,400,-10,10,-10,10,(1/2)x, 2x, -2x, -(1/2)x)}}}
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The brownish-red graph has a slope of 1/2. The green graph has a slope of 2. The dark blue 
graph has a slope of -2, and the purple graph has a slope of -1/2.
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Hope this helps you understand the concept of slope.
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