Direct and Inverse Proportion

Direct and Inverse Proportion

Secondary 2

The tables show two relationships.

\(x\)\(2\)\(4\)\(6\)
\(y\)\(7\)\(14\)\(21\)
\(p\)\(2\)\(4\)\(6\)
\(q\)\(7\)\(9\)\(11\)
  1. Which table is consistent with direct proportion? Justify using ratios.

  2. Write its proportional equation.

  3. Explain why “both quantities increase” is insufficient evidence.

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