Question

Question attached.

Answer 1

Can't find my mistake...
\[a_n = 48 + (n-1)(-2)\]
\[a_n = 48 + (-2n+2)\]
\[a_n = 50 - 2n\]

Answer 2

it is correct.
what is the option?

Answer 3

It is asking the `recursive` formula, but you have worked the explicit formula

Answer 4

Since the common difference is -2, the same sequene using a recursive formula can be expressed as
\[\large a_n = a_{n-1}-2\]

Answer 5

That simply says to get the next term, subtract 2 from the previous term.

Answer 6

Thank you!

Answer 7

yw