Use the links for practice or review.
https://www.youtube.com/watch?v=8PT_ZN8YxVY&index=3&list=PLAC5EA62150BD3A5A
https://www.brightstorm.com/math/algebra-2/roots-and-radicals/powers-of-i/
https://www.youtube.com/watch?v=NeTRNpBI17I
https://www.youtube.com/watch?v=9Fm8aUyf1Yo
https://www.youtube.com/watch?v=1lND7Q_WNb0
HW: Complete WS 4.7 Test Prep & Please watch this short video on powers of i.
https://www.youtube.com/watch?v=VTAsbx5wBaI