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Question

Find the number of vertices in the next pattern.

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Solution

Let x = number of steps
y = number of vertices [1 mark]
Tabulating the values,
x 1 2 3 4 5
y 3 6 12 24 ?
[1 mark]
Hence, the relationship between x and y can be generalised as y = 3×2(x1)
Required number of vertices in the next pattern
= 3×2(51) = 3×24 = 48 [1 mark]

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