Question

What Is The Recursive Rule For The Sequence? 1.2, 0.4, -0.4, – 1.2, -2,

Answer 1

Answer:

$\boxed{\bold{a_n = a_{n-1} -0.8}}$

Explanation:

Sequence: 1.2, 0.4, -0.4, – 1.2, -2,...

See that with every next term, the integers are decreasing by 0.8

• So, common difference (d) = -0.8

recursive formula : $\sf a_n = a_{n-1} +d$

$\bold a_1 = 1.2,$ $\sf a_n = a_{n-1} + (-0.8)$