Hi Tom,
There are a few options. If you would be ok with uploading and inserting images into the Google slide, then that presents more options. On Windows, you can save the images as 300 DPI for JPEG or PNG (Preferences->Windows Specific->Copy/Drag Formats->Resolution(DPI) for PNG and JPEG Images). On the Mac, the Mac OS Settings under Preferences offers a variety of formats that can be exported. You can set a Clipboard Image Scale factor for many of the formats to essentially get more bits for your image.
In JMP 12, we offer export to Powerpoint (PPTX) with JMP Reports. You could then use the Google Slides import facility to just import the slides directly into your deck.
I hope that helps.
Brian Corcoran
JMP Development