bell work - moore public schools...1 february 07, 2020 jan 319:29 am bell work 1. 1. a 2. c 2. jan...

4
Untitled.notebook 1 February 07, 2020 Jan 319:29 AM Bell Work 1. 1. A 2. C 2. Jan 317:52 AM 6.3 Day 1 Logarithmic Functions Ex. 1: Rewrite each equation in exponential form. a) log 2 16 = 4 b) log 4 1=0 c) log 12 12 = 1 d) log 1/4 4 = 1 Jan 317:57 AM Rewrite in exponential form. Jan 318:11 AM Ex. 2: Rewrite each equation in logarithmic form. a) 5 2 = 25 b) 10 1 = 0.1 c) 8 2/3 =4 d) 6 3 = 1/216

Upload: others

Post on 17-Oct-2020

0 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Bell Work - Moore Public Schools...1 February 07, 2020 Jan 319:29 AM Bell Work 1. 1. A 2. C 2. Jan 317:52 AM 6.3 Day 1 Logarithmic Functions Ex. 1: Rewrite each equation in exponential

Untitled.notebook

1

February 07, 2020

Jan 31­9:29 AM

Bell Work1.

1.  A

2.  C

2.

Jan 31­7:52 AM

6.3 Day 1 Logarithmic Functions

Ex. 1:  Rewrite each equation in exponential form.

a)  log2 16 = 4

b) log4 1 = 0

c)  log12 12 = 1

d)  log1/4 4 = ­1

Jan 31­7:57 AM

Rewrite in exponential form.

Jan 31­8:11 AM

Ex. 2:  Rewrite each equation in logarithmic form.

a)  52 = 25

b)  10­1 = 0.1

c)  82/3 = 4

d)  6­3 = 1/216

Page 2: Bell Work - Moore Public Schools...1 February 07, 2020 Jan 319:29 AM Bell Work 1. 1. A 2. C 2. Jan 317:52 AM 6.3 Day 1 Logarithmic Functions Ex. 1: Rewrite each equation in exponential

Untitled.notebook

2

February 07, 2020

Jan 31­7:57 AM

Rewrite in logarithmic form.5.  72 = 49

6.  500 = 1

7.  4­1 = 1/4

8.  2561/8 = 2

Jan 31­8:18 AM

Ex. 3:  Evaluate each logarithm.

a)  log4 64 =

b)  log5 0.2 =

c)  log1/5 125 =

d)  log36 6 =

Jan 31­8:37 AM

common log:  log with base 10 ~ written as log

natural log:  log with base e ~ written as ln

Ex. 4:  Evaluate using the calculator.  Round your answer to 3 decimal places.

a)  log 8 b)  ln 0.3

Jan 31­7:57 AM

Evaluate the log.  Round 3 place values.9.  log2 32

10.  log27 3

11.  log 12

12.  ln 0.75

Page 3: Bell Work - Moore Public Schools...1 February 07, 2020 Jan 319:29 AM Bell Work 1. 1. A 2. C 2. Jan 317:52 AM 6.3 Day 1 Logarithmic Functions Ex. 1: Rewrite each equation in exponential

Untitled.notebook

3

February 07, 2020

Jan 31­9:33 AM

6.3 Day 2  Inverse Properties

Inverse Properties:  logb bx = x  and  blogb x = x

Ex. 5:  Simplify 

a)  10log 4 b)  log5 25x

Jan 31­10:56 AM

Simplify the expression1.  8log8 x

2.  log7 7­3x

3.  log2 64x

4.  eln20

6.3 Day 2 HW

Jan 31­10:22 AM

Ex. 6:  Find the inverse of each function.

a)  f(x) = 6x b)  y = ln(x + 3)

Jan 31­10:56 AM

Find the inverse.5.  y = 4x

6.  y = ln(x­5)

7.  y = 5x ­ 9

8.  y = log2 x

6.3 Day 2 HW

Page 4: Bell Work - Moore Public Schools...1 February 07, 2020 Jan 319:29 AM Bell Work 1. 1. A 2. C 2. Jan 317:52 AM 6.3 Day 1 Logarithmic Functions Ex. 1: Rewrite each equation in exponential

Untitled.notebook

4

February 07, 2020

Jan 31­10:56 AM Jan 31­11:00 AM

Ex. 7:  Graph f(x) = log3 x

Jan 31­10:56 AM

Graph the function.9.  log2 x

10.  log1/2 x

6.3 Day 2 HW

Feb 1­9:25 AM

Homework Help!!Simplify the expression

3.  log2 64xFind the inverse

7.  y = 5x ­ 9