Question

A sequence has three terms the term to term rule for sequence is multiple by3 and then add 7 given that the first term of the sequence is -1 write down the value of the third term

Answer 1

Explanation:

a₁ = -1

a₂ = 3a₁ + 7 = 3(-1)+7 = 4

a₃ = 3a₂ + 7 = 3·4+7 = 19