All resources

Ratio & proportionWorksheet · Higher

Direct proportion:y = kx

The six steps from y ∝ x to the answer, as a recipe for any question. Two to a page, to stick in books.

A free GCSE Higher ratio and proportion walkthrough, spec code R13. It goes with the lesson on direct proportion: y = kx.

Direct proportion: y = kx, first page
Higher

Direct proportion:y = kx

More in Proportion

Everything in Proportion