Which train is traveling faster ? Explain your answer.
2 answers:
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The slope of any line is the fraction , where
is the change in y-coordinate and
is the change in x-coordinate.
To find these changes, we take the <em>difference </em>of the corresponding x and y coordinate for the two points. Here, our y-coordinates are -7 and 3, and our x-coordinates are 5 and 1, so our slope is