Mathematics for IGCSE & O level - Proportion (Section 1 - No. 34) | ExamPlay

Mathematics for IGCSE & O level - Proportion (Section 1 - No. 34)

If *y* is directly proportional to *x*, and *y* = 6 when *x* = 2, what is the constant of proportionality?

2

3

6

12

Explanation

y=kx; 6=k*2; k=3

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