Homework Review 5.1 to 5.4 KEY by Mr. Sladkey

Here is the review 5.1 to 5.4 worksheet.

dsladkey2 — 2016-11-11 13:25:51 UTC

4c. Karis and Katie

2016-11-11 14:08:04 UTC

x-2=3√(y+5)
(x-2)^3= (3√y+5)^3
(x-2)^3= y+5
y=(x-2)^3-5

Safa Mackenzie

snhabib — 2016-11-11 14:08:21 UTC

6.) (1/4)^x=16^2
1/4^x=256
log_(1/4) 256=x
x=-4

Karis and Katie

kdladin — 2016-11-11 14:11:16 UTC

4d.
f(x)=(2x+4)/(x-2)
(2y+4)/y-2=x
2y+4=(xy-2x)
(2x+4)=(xy-2y)
2(x+2)=y(x-2)

2(x+2)/(x-2)=f^-1(x)=(2x+4)/(x-2)

Lucas and Alyssa

ljnervig — 2016-11-11 14:11:28 UTC

2a. Find FoG
f(g(x))= square root 2x-3
Domain of g is all reals
Domain of FoG is 2x-3 is greater than or equal to zero.

2b. Find GoF
g(f(x))= 2square root x -3
Domain of f is x is greater than or equal to zero
Domain of GoF is x is greater than or equal to zero.

Delaney and Sarah

dmwochok — 2016-11-11 14:12:17 UTC

11.
D:{x| x<-3, x>1}

Evan and Alex

eryoung1 — 2016-11-11 14:15:13 UTC

#12

tjredpath — 2016-11-11 14:15:50 UTC

#9c Tommy/Savannah

tlwilliams21 — 2016-11-11 14:18:53 UTC

#12

pjhealey — 2016-11-11 14:20:04 UTC

a) log2(2x+1)=3
2^3=2x+1
8=2x+1
7=2x
x=3.5

b) 2e^3x=6
e^3x=3
ln3=3x
1.099=3x
x=.37

e^4x=e^2-3x

cwfleming — 2016-11-11 14:21:35 UTC

-----------------------
4x = 2-3x
4x+3x = 2
7x = 2
x=(2/7)

-Christian &

The trio

2016-11-11 14:26:04 UTC

the trio part 2.

2016-11-11 14:27:34 UTC

Dominic and Nicole

2016-11-11 14:28:28 UTC

(we finally got it)

Norah & Jen

nefinn — 2016-11-11 14:31:16 UTC

Marshall and Claudia: Number 7

myreeb — 2016-11-11 17:03:57 UTC

9^(2x) * 27^(x-2) = 3^(-1)

3^2(2x) * 3^3(x-2) = 3^(-1)

3^(4x) * 3^(3x-6) = 3^(-1)

7x - 6 = -1

7x = +5

x = 5/7

Ruth and Alec

regeorge — 2016-11-11 17:04:39 UTC

e^4x=e^2-3x
4x=2-3x
7x=2
x=2/7

Number 10

2016-11-11 17:04:51 UTC

Aaron Zeeb and Emma P

2016-11-11 17:06:42 UTC

AND Lani

arhunter1 — 2016-11-11 17:07:02 UTC

Lea T. and Emily W.

2016-11-11 17:07:22 UTC

Gabe and Ivo

2016-11-11 17:09:02 UTC

#11

Jen and Chris (#9a)

jethomas1 — 2016-11-11 17:09:05 UTC

Gillian Thomson and Sabrina

gathomson — 2016-11-11 17:10:14 UTC

4c. and 4d.

Ashima and Jack

2016-11-11 17:11:27 UTC

Number 13

samellenthin — 2016-11-11 17:12:19 UTC

Scott & David

Anabella and elizabeth #9b

egg4205 — 2016-11-11 17:15:04 UTC

Emame and Jake

2016-11-11 17:16:11 UTC

Katelyn and Jake #13

2016-11-11 18:51:30 UTC

Mitchell and Thea #8

mahale — 2016-11-11 18:52:38 UTC

Nick and Zack #1

2016-11-11 18:52:38 UTC

Allison and Abhishek

2016-11-11 18:52:48 UTC

claire, angelina, addie #12ab

aedoyle11 — 2016-11-11 18:54:06 UTC

Jen and Amanda

2016-11-11 18:55:51 UTC

Ally and Abbey #9a

amvukasovic — 2016-11-11 18:56:48 UTC

Rokas and Sam #

2016-11-11 18:57:23 UTC

Inaaz and Bobbi

2016-11-11 19:03:07 UTC

mjkribs — 2016-11-11 19:09:43 UTC

Kaila and Andrew #9b

ajauw1 — 2016-11-11 19:11:08 UTC

Tara and Damian #4a, 4b

2016-11-11 19:11:35 UTC