Mathematics for IGCSE & O level - Proportion (Section 1 - No. 8)
If *a* is directly proportional to the square of *b*, which of these equations describes the relationship?
a = k/b
a = kb
a = kb^2
b = ka^2
Explanation
If *a* is directly proportional to the square of *b*, the relationship is a = kb^2, where k is a constant.
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