Explain proportional values

Explain proportional values iona/. 'hen s 'eprc•cnted by the egu.ææ.n-- going through an origin of an x-axis an angle Cz, a 'E k: tan a = k. Therefore. a facer cf also a slope. These are = IA k = I and k = —3 on

When two quantities are producing a same ratio-value in relation to each other. In other words they have the same ratio.

Example: A rope's length and weight are in proportion. When 20m of rope weighs 1kg, then:
• 40m of that rope weighs 2kg
• 200m of that rope weighs 10kg

Another example: The lengths of these two shapes are proportional (one shape's length is always twice as large as the other)

Likewise; a line y = kx means that y has value 'k' times that of x ; the proportionality constant here is 'k' which remains same throughout.


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If y is proportional to x,
so, y= kx where, k is the constant of proportionality.
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