A pendulum travels 30 inches on its first swing. During each of its subsequent swings, it travels 90 percent of the previous swing.

What is a1?
30
What is r ?
0.9

Which shows the exact distance traveled during the first six swings?

3rd option
Does the sum of the infinite series converge?

✔ Yes, because |r| < 1.
About how far does the pendulum swing before coming to rest?

B