soniccatcar soniccatcar

10-02-2021
Mathematics

contestada

HELP!!!!! Algebra II Help needed
Find a formula for the nth term of the arithmetic sequence.
First Term -2
Common Difference 8

Gotten this far:
an=8n+?

Thank you!!!

Respuesta :

reeserl reeserl

10-02-2021

Answer:

[tex]a_{n} = 8n - 10[/tex]

Step-by-step explanation:

[tex]a_{n} = a_{1} + (n - 1)d[/tex] is the formula you want to use

[tex]a_{n} = -2 + (n - 1)8[/tex]

= -2 + 8n - 8

= 8n - 10

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