Question

Mr. Gary wrote the sequence below on the board.

10,5, 0, -5, -10
Identify the value of aj and complete the recursive rule for Mr. Gary's sequence.
aj =
an = an-1

Choices :
0,5,0,-5,-10

Answer 1

• a₁ = 10
• aₙ = aₙ₋₁ - 5

Explanation:

Given the sequence:

• 10, 5, 0, -5, -10

The first term is 10 and the common difference is -5

The recursive formula for the given sequence is:

• a₁ = 10
• aₙ = aₙ₋₁ - 5