A pattern is describe by an= 3n -5 what are the first four ters of the sequence?

Mathematics

1 answer:

Allisa [31]4 years ago

8 0

9514 1404 393

Answer:

-2, 1, 4, 7

Step-by-step explanation:

Start with n=1. Put the value where n is in the expression and do the arithmetic.

a1 = 3·1 -5 = -2

a2 = 3·2 -5 = 1

a3 = 3·3 -5 = 4

a4 = 3·4 -5 = 7

You may notice that each term is 3 more than the previous one.

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