4 results.
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Question in Transition to university
Given the first three terms of a sequence, give a formula for the nth term.
In the first sequence, d is positive. In the second sequence, d is negative.
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Question in Transition to university
Given sequences with missing terms, find the common difference between terms.
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Question in Transition to university
Given the common difference and first term of an arithmetic sequence, work out the index of the nth term of the sequence.
Framed as a word problem with ticket numbers in an ice cream shop.
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Question in Transition to university
Given the first and last terms of a finite arithmetic sequence, calculate the number of elements and then the sum of the sequence.
Each part is broken into steps, with the formula given.