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A car travels a distance of d km in t hours. The formula that relates d to t is d = kt. What kind of variation is it?

User SuperZhen
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Final answer:

The formula d = kt represents direct variation, where the distance traveled (d) is directly proportional to the time taken (t) with a constant rate of change represented by the constant k.

Step-by-step explanation:

The kind of variation represented by the formula d = kt is direct variation. In direct variation, one variable is a constant multiple of the other variable. In this case, the distance traveled (d) is directly proportional to the time taken (t), with a constant rate of change represented by the constant k.

For example, if k = 50, and t = 2, then d = 100 km.

Similarly, if t is halved to 1, then d is also halved to 50 km.

User ReallyMadeMeThink
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