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Hong Kong
Stage 4 - Stage 5

Constant of Proportionality

Interactive practice questions

A car moves uniformly at the same speed. The duration of the journey is proportional to the distance travelled.


Complete the following table:

Distance (in km) $73$73 $146$146 $219$219 $\editable{}$
Time (in hours) $1$1 $\editable{}$ $\editable{}$ $5$5

What is the constant of proportionality in the table above?

Approx 2 minutes

Answer the following questions in relation to the graph shown:

Consider the equation: $y=8x$y=8x.

In the following proportionality table, the second row is obtained by multiplying the top row by the constant of proportionality. Complete the table and find that constant.

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