Consider the infinite series defined by (see image). (a) What is the value of r from the ratio test?
(b) What does this r value tell you about the series?

I've been trying to figure this out for days and I'm starting to panic. I'm supposed to show work, so please include it if you can, but at this point I'm willing to turn it in with just the answers. All help is greatly appreciated!

9+9 =21

Step-by-step explanation:

that means 21

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.

-6 is the correct option from the above given options