Variables represent unknowns. They are often letters (like x) but can also be other symbols like Greek numerics.
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Answer:
Dylan's speed 30
Mike's 20
Step-by-step explanation:
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The <em>correct answer</em> is:
It does not.
Explanation:
The scale of a graph just tells us how many units are between numbers. This does not change the overall distance represented.
For example, I can have two graphs on which the x-axis goes to 60. On one graph, I can count by 10s for my scale, while the other graph uses 5s. While the scales are different, the same distance is represented.
