Really confused on making XY plots in Numbers

Question

I'm trying to make an XY plot in numbers from two columns of data.  I can't figure this out.  Here is an example.
Day
Sum
1
0
8
-11
11
-14
16
-18
18
-20
23
-25
25
-25
30
-25
33
-27
34
-27
36
-29
Let's say I want to make a simple XY plot.  In this example "Day" is the X coordinate of the data and "Sum" is the Y coordinate.  Excel or if I did this on paper, the graph would look like this (scatter plot function)
In numbers I get this
or if I unselect "share X values" I get this
Neither of these are right.  When I try to manually edit the X or Y data values they seem locked together.  I think I've played with every toggle available in numbers.
My Numbers version is 3.5.2

Answer 1

Hi ssls,
There are two types of graphs (Charts) in Numbers 3 that require data to be in Body Cells.
In the red "round rectangle" on the left is a Scatter Plot (I think you are looking for this) and on the right is a Bubble Chart (I don't think you are looking for this).
All other graphs are Category graphs (charts) that require the X data to be in a Header in a table.
Reproducing your data in a table with no Header Columns:
Row 1 is a Header Row, and that is OK.
Select Columns A and B and insert a Scatter Plot.
To add the line, click on the graph and Format Panel > Series > Connection Lines > Straight
Is that what you want?
Regards,
Ian.