Find the inverse of each matrix (+5 points if you do it by hand and show your work)
[1 -1] [-1/2 1]
Oops!
Check
Okay!
Check
5
Are the two matrices inverses?
Yes
Oops!
Check
Okay!
Check
heart
Other team wins 25 points!
Oops!
rocket
Go to first place!
Okay!
fairy
Take points!
5
10
15
20
25
banana
Go to last place!
Oops!
20
Solve each system using inverse matrices
(-2,4)
Oops!
Check
Okay!
Check
5
Are the two matrices inverses?
Yes
Oops!
Check
Okay!
Check
20
Solve each system using inverse matrices
(3,4)
Oops!
Check
Okay!
Check
10
Find the inverse of each matrix (+5 points if you do it by hand and show your work)
[-6 7] [-1 1]
Oops!
Check
Okay!
Check
15
Solve the following for x and y
(2,5)
Oops!
Check
Okay!
Check
5
Are the two matrices inverses?
No
Oops!
Check
Okay!
Check
seesaw
Swap points!
Oops!
shark
Other team loses 25 points!
Okay!
shark
Other team loses 15 points!
Okay!
banana
Go to last place!
Oops!
10
Find the inverse of each matrix (+5 points if you do it by hand and show your work)
[0 -1/4] [-1/2 1]
Oops!
Check
Okay!
Check
15
Solve the following for x and y.
(1,0)
Oops!
Check
Okay!
Check
baam
Lose 10 points!
Oops!
rocket
Go to first place!
Okay!
gift
Win 25 points!
Okay!
banana
Go to last place!
Oops!
20
Solve each system using inverse matrices
(-1,5)
Oops!
Check
Okay!
Check
25
Hogwarts is selling tickets to the quidditch finals. On the first day, the school sold 2 teacher tickets and 8 student tickets for a total of 90 knuts. Then the school took in 115 by selling 7 teacher tickets and 8 student tickets.
5 knuts for teacher tickets, and 10 knuts for student's tickets.
