Eric Nicholas K's answer to tiffany's Secondary 1 Maths Singapore question.

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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
1st
When we say that y is directly proportional to (3x - 4), we mean that y is a fixed multiple of (3x - 4). This is denoted as y = k (3x - 4) where the multiplier k is what we call a proportionality constant.