Algebra 2

Question 1

(f+g)(x) (fxg)(x)
(f-g)(x) (f/g)(x) (denom cant =0)

Answer 1

you got this

Question 2

inverse of f(x)

Answer 2

f to the -1 (x)

Question 3

HLT

Answer 3

determine if the inverse of the function is also a function

Question 4

graphing inequality

Answer 4

1. graph related equation
2. solid or dotted
3. test graphing point

Question 5

b to the x/y

Answer 5

y root b to the x

Question 6

exponential growth
exponential decay
functions

Answer 6

f(x)=a(b) to the x b>1
f(x)=a(b) to the x 0<b<1

Question 7

exponential growth model
y=a(1+r) to the t
decay model
y=a(1-r) to the t

Answer 7

a=initial amount y=end amount t=time r=rate(decimal)

Question 8

variations
direct, joint, inverse, combined

Answer 8

D: y=kx j: y=kxz
I: y=k/x c: y=(kx)/z

Question 9

SOHCAHTOA

Answer 9

SHOCHATAO

Question 10

arc length area of sector

Answer 10

l r times theta
a 1/2 r squared times theta

Question 11

law of sines and cosines

Answer 11

s area=1/2 bc sin(A)
c a2=b2+c2-2bc times cos(a)

Question 12

herons area triangle

Answer 12

s (1/2 (a+b+c)
square root s times (s-a)(s-b)(s-c)