Resizing Partitions

I cannot resize the HD of a new Mac Mini. The Mac HD shows 700+ GB on one partition with Yosemite on it and another partition of 200+ GB named "Free Space" and I cannot figure out how it got there

0: GUID_partition_scheme *1.0 TB disk0 1: EFI EFI 209.7 MB disk0s1 2: Apple_CoreStorage 730.5 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 /dev/disk1 #: TYPE NAME SIZE IDENTIFIER 0: Apple_HFS Jude *730.2 GB disk1 Logical Volume on disk0s2 6D73517B-FBE6-40CD-A14B-2C6F9DF3A8DC Unencrypted /dev/disk2 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *250.1 GB disk2 1: EFI EFI 209.7 MB disk2s1 2: Apple_HFS BU2 249.7 GB disk2s2 Judis-Mac-mini:~ judibowman$