Question

A sequence is given by the rule 4n - 5. Will the number 25 be a term in the sequence? Explain your answer

Answer 1

Answer:

$4n - 5 = 25 \\ 4n = 25 + 5 \\ n = \frac{30}{4}$

Answer 2

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What you can do: (n)a=(n)(4+1/n)

Know divide away each n on respective side you get:

a=4+1/n

Know when n=0, 1/0 is not defined there’s that

n=1 , 4+1/1 = 5

n=2 , 4+1/2 = 4.5

n=3 , 4.33

n=4, 4.25