An iterative pattern is one in which each subsequent term is based (in part) on the previous term.
e.g., 1, 3, 6, 10, 15 is t(n) = t(n - 1) + n
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algebra an hfhf
The first number you use in an iterative equation/method is known as the initial point and is often symbolised with a subscript 0 like so, x0.
A trend is like a pattern except not as precise
first show us that 'following pattern', only then we can tell.