ExamPlay Light Logo
登入

Mathematics for IGCSE & O level - Proportion (Section 1 - No. 11)

If *y* is inversely proportional to *x*3, and *y* = 2 when *x* = 2, then what is the constant of proportionality?
4
8
16
32

解释

Since y = k/x^3, then 2= k/2^3, so k=16

评论 (0)

广告