Assessment 4 review

Composing Functions

100

Find a(b(x)), for a=3-x and b=x²+3.

a(b(x))=3-(x²+3) or -x²

200

Find c(d(2)), for c=x-1 and d=3(x)².

c(d(2))=11

300

Find f(e(3)).  See board #1 for equations.

f(e(3))=-2

400

Find c(a(b(4))) for a=x²+1, b=5-2x, c=(x+1) / 2x

c(a(b(4)))= 11/20 or 0.55

Inverses

100

Find the inverse of the function f(x)={(3,1), (4,-2),(8,2), (1,-9)}

f^-1(x)={(1,3), (-2,4), (2,8), (-9,1)}

200

Find the inverse of f(x)=(3x-2)/ 6

f^-1(x)=(6x+2)/ 3

300

Find the inverse of f(x)=1/2x + 4/3

f^-1(x)=2x - (8/3)

400

Find the inverse of Question #2 on the board. 

f^-1(x)=3x²-4 / 7

Matrices

100

Find the order of A, 

and Find The entry A_31.

Order:3x3

A₃₁: 3

200

Find 2D-4E.

22   -38

18    14

300

Find BA

31   42   53

26   48   -10

400

Solve EX=D

(Remember AX=B?)

12.75    15.25

  4.5        5.5 

Trig Functions

100

The terminal side of an angle passes through (5,-12).  What is sine?

-12/13

200

The terminal side of an angle passes through (-8,-15).  What is Secant?

-17/8

300

The terminal side of an angle passes through (-11,4).  What is Cosine?

 What is Tangent?

Under Group #3

400

The terminal side of an angle passes through (16,4). Reduce if possible!

 What is Cosecant?

Under Group #4

Halloween Movies

100

Whose is the neighborhood friendly ghost?

Casper

200

What is the name of the scary clown from the Stephen King Franchise 'It'?

Pennywise

300

Which movie franchise features a haunted baby doll other than Chuckie?

Annabelle

400

Which Paramount Pictures family features the following members?

Gomez, Morticia, Pugsley, Wednesday, Fester, Grandmama, Lurch, Thing, and Cousin Itt?

The Addams Family