Can I use the personal hotspot on my iphone 4 to gain internet access on my Nexus 7? Do I need a tether cable?

I have an iPhone 4 with ios 6 with hotspot capability. Can I use this hotspot to gain internet access for my Nexus 7? And if so, does it require a tether cable or can I access via bluetooth? Was given the Nexus as a gift, would not have been my choice because of wi fi access capability restrictions. I am very technically challenged. Any help would be appreciated.