Scatter plot with multiple x independent variables

[mpiotro2]

I'm working with the SAS University Edition, and I'm having trouble creating a scatter plot from a dataset with three X variables. It seems like this should be really simple, but I can only seem to add one X value. I have a homework assignment where my instructor asked us to "Plot the observed data and the two fitted regressions on one plot (this is probably easiest done by hand over a scatterplot of the data)." Here is the data set: 

Obs	CITY	Y	X1	X2	X3
1	1	11.2	587	16.5	6.2
2	2	13.4	643	20.5	6.4
3	3	40.7	635	26.3	9.3
4	4	5.3	692	16.5	5.3
5	5	24.8	1248	19.2	7.3
6	6	12.7	643	16.5	5.9
7	7	20.9	1964	20.2	6.4
8	8	35.7	1531	21.3	7.6
9	9	8.7	713	17.2	4.9
10	10	9.6	749	14.3	6.4
11	11	14.5	7895	18.1	6
12	12	26.9	762	23.1	7.4
13	13	15.7	2793	19.1	5.8
14	14	36.2	741	24.7	8.6
15	15	18.1	625	18.6	6.5
16	16	28.9	854	24.9	8.3
17	17	14.9	716	17.9	6.7
18	18	25.8	921	22.4	8.6
19	19	21.7	595	20.2	8.4
20	20	25.7	3353	16.9	6.7

[PeterClemmensen]

Can you provide an example of what such a plot would look like?

[mpiotro2]

I don't think so, because I'm not even sure what it would look like myself... unless my instructor means I should create a separate scatterplot for each X variable? 

[mpiotro2]

I think he's asking us to do something like what's being done in this video using a different program... https://www.youtube.com/watch?v=_5kRBBqQhA0

[PaigeMiller]

PROC SGSCATTER will create such a scatterplot with 3 x-variables and one-y variable. An example is given here:

https://documentation.sas.com/?docsetId=grstatproc&docsetVersion=9.4&docsetTarget=p0yb5lnzixgxoxn186...