Mathematics
lindadailey1
31

Given the first term and the common difference of an arithmetic sequence find the first five terms and explicit formula. a1=28, d=10

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greatness

[latex]\bf n^{th}\textit{ term of an arithmetic sequence}\\\\ a_n=a_1+(n-1)d\qquad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ d=\textit{common difference} \end{cases}\\\\ -------------------------------\\\\ \begin{array}{llll} term&value\\ ------&------\\ 1&a_1=28\\ 2&a_2=28+(2-1)10\\ &a_2=28+10\\ &a_2=38\\\\ 3&a_3=28+(3-1)10\\ 4&a_4=28+(4-1)10\\ 5&a_5=28+(5-1)10 \end{array}[/latex]

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