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When computing the slope of a line, choose two points along the line and do the following:

Let's say the points we choose are (1,3) & (2,5). To compute the slope we need to use the slope formula: m = (y1-y2) / (x1-x2). So, using the two points we chose, just plug them into the formula: m = (3-5) / (1-2) = -2 / -1 = 2. Therefore, our slope is 2. These particular points yield the graph, y = 2x + 1.

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Q: Is the horizontal change the differences in the x-coordinates when computing slope?
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