Question

PLSSS HELPPP

What is the equation for an arithmetic sequence with a first term of 5 and a second term of 2?

Group of answer choices

an = 5 − 2(n − 1)

an = 5 + 2(n − 1)

an = 5 − 3(n − 1)

an = 5 + 3(n − 1)

Answer 1

An=A1+(n-1)d

d =A2-A1

d =2-5= -3

An=5+(n-1)-3

An=5-3n+3

An=8-3n

Answer 2

The third answer an = 5 − 3(n − 1).