Question

How do you figure out a specific term in an arithmetic sequence? For instance, the 46th term in the sequence -1.5, -1.3, -1.1, -0.9,...?

Answer 1

use the formula

\[T_{n} = a + (n -1)\times d\]

where n = the number of terms
a = 1st term
d = common difference ( what is being added to the term to get the next term)