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In a graph of cost against the number of pens bought, which is the independent variable?

Class 8Linear GraphsCoordinate Geometry
  • ACost
  • BBoth
  • CNumber of pens
  • DNeither

Step-by-Step Solution

We choose how many pens to buy; the cost depends on that. So the number of pens is independent and the cost is dependent.
Answer: C) Number of pens

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