The local festival of Knowledge at NCPA is hosting music bands. Metallica, Menudo, AC DC, One Direction, Nirvana, and Selena y Los Dinos are all ready to
perform at the festival of knowledge. Only 4 bands can play at this event. How
many possible line ups can be arranged for the music?

no not all of them.

step-by-step explanation:

some of them have a square base.

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)  

17.08

correct me if i am wrong.

28

step-by-step explanation:

because that's the answer