Question

In an arithmetic sequence, a17 = -40 and
a28 = -73. Explain how to use this information to write a recursive formula for this sequence.
WILL MARK BRAINLIEST

Answer 1

Answer:

DISCLAIMER: I MIGHT BE WRONG I LEARNED THIS LAST YEAR SO I AM A BIT RUSTY PLEASE DONT HATE AND REPORT ME :)

a(n)=a(n-1)-3

Step-by-step explanation:

The recursive formula is a(n)=a(n-1)+d

d= common difference

n= the number of whichever term you are finding

Now we will find the common difference

28-17=11

the difference between -40 and -73 is -33.

commondifference is -3

a(n-1)-3

sorry if this is unorganized