Find a Formula for A_n for the Arithmetic Sequence $$a _ { 3 } = 0 , a _ { 9 } = - 12$$

question 25

Multiple Choice

Find a formula for a_n for the arithmetic sequence.? $$a _ { 3 } = 0 , a _ { 9 } = - 12$$ ?

• A)a_n ?= 4 - 2n
• B)a_n ?= -6 + 4n?
• C)a_n ?= - 2 + 4n?
• D)a_n ?= 6 - 2n?
• E)a_n ?= 4n

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