Mathematics for IGCSE & O level - Proportion (Section 2 - No. 47)
What is the first step to find the formula for the proportion in the method?
Solve the equation to find k.
Substitute a known pair of values for x and y.
Replace the = sign with a ∝ sign
Rewrite the formula using the found value of k.
Paliwanag
The first step to determine the formula of a proportion is to replace the = sign with a ∝ sign. The next step involves finding the value for k by using the values for x and y