1. Expand the following: 2. Condense the following: Warm-upWarm-up.

Slides:



Advertisements
Similar presentations
Objectives Solve exponential and logarithmic equations and equalities.
Advertisements

Copyright © 2009 Pearson Education, Inc. CHAPTER 5: Exponential and Logarithmic Functions 5.1 Inverse Functions 5.2 Exponential Functions and Graphs 5.3.
Properties of Logarithms
Solving Exponential Equations Using Logarithms
Slide Copyright © 2012 Pearson Education, Inc.
5.4 Exponential and Logarithmic Equations Essential Questions: How do we solve exponential and logarithmic equations?
Exponential and Logarithmic Equations
and Logarithmic Equations
7-5 Logarithmic & Exponential Equations
Solving Exponential Equations…
5-4 Exponential & Logarithmic Equations
7.6 – Solve Exponential and Log Equations
Logarithmic Functions y = log a x, is read “the logarithm, base a, of x,” or “log, base a, of x,” means “the exponent to which we raise a to get x.”
Example 6 Solution of Exponential Equations Chapter 5.3 Solve the following exponential equations: a. b.  2009 PBLPathways.
Objectives Solve exponential and logarithmic equations and equalities.
Logarithmic and Exponential Equations
Section 4.5 Exp. & Log Equations
Remember that exponential functions and logarithmic functions are inverses of each other. We will use this property to solve problems.
EQ: How do you use the properties of exponents and logarithms to solve equations?
Algebra II w/trig. A logarithm is another way to write an exponential. A log is the inverse of an exponential. Definition of Log function: The logarithmic.
11.3 – Exponential and Logarithmic Equations. CHANGE OF BASE FORMULA Ex: Rewrite log 5 15 using the change of base formula.
4.4 Solving Exponential and Logarithmic Equations.
8.5 – Exponential and Logarithmic Equations. CHANGE OF BASE FORMULA where M, b, and c are positive numbers and b, c do not equal one. Ex: Rewrite log.
8-5 Exponential & Logarithmic Equations Strategies and Practice.
Section 3.4 Exponential and Logarithmic Equations.
Warm up. 3.4 Solving Exponential & Logarithmic Equations Standards 13, 14.
Academy Algebra II/Trig 6.6: Solve Exponential and Logarithmic Equations Unit 8 Test ( ): Friday 3/22.
Solving Exponential and Logarithmic Equations Section 8.6.
 If m & n are positive AND m = n, then  Can solve exponential equation by taking logarithm of each side of equation  Only works with base 10.
Solving Exponential and Logarithmic Equations Section 6.6 beginning on page 334.
Unit 5: Modeling with Exponential & Logarithmic Functions Ms. C. Taylor.
Notes Over 8.4 Rewriting Logarithmic Equations Rewrite the equation in exponential form.
6.4 – Solving Logarithmic Equations and Inequalities Objective: TSW solve logarithmic equations and inequalities.
Do Now (7.4 Practice): Graph. Determine domain and range.
Pg. 301/308/311 Homework Study #8right 2; x = 2#10reflect y; right 5; x = 5 #12right 4/3; up log 2 3; x = 4/3#14reflect x; left 3; down 2; x = -3 #16D:
Logarithms 1 Converting from Logarithmic Form to Exponential Form and Back 2 Solving Logarithmic Equations & Inequalities 3 Practice Problems.
You’ve gotten good at solving exponential equations with logs… … but how would you handle something like this?
Notes Over 5.2 Rewriting Logarithmic Equations and Rewrite the equation in exponential form. are equivalent. Evaluate each logarithm.
The inverse function of an Exponential functions is a log function. The inverse function of an Exponential functions is a log function. Domain: Range:
Solving Exponential Equations. We can solve exponential equations using logarithms. By converting to a logarithm, we can move the variable from the exponent.
A) b) c) d) Solving LOG Equations and Inequalities **SIMPLIFY all LOG Expressions** CASE #1: LOG on one side and VALUE on other Side Apply Exponential.
Properties of Logarithms Change of Base Formula:.
Solving Logarithmic Equations
Exponential and Logarithmic Equations
Section 5.5 Solving Exponential and Logarithmic Equations Copyright ©2013, 2009, 2006, 2001 Pearson Education, Inc.
February 13, 2012 At the end of today, you will be able to graph a logarithmic function. Warm-up: Describe the transformation for: f(x) = -3 x.
4.7 (Green) Solve Exponential and Logarithmic Equations No School: Monday Logarithms Test: 1/21/10 (Thursday)
Property of Logarithms If x > 0, y > 0, a > 0, and a ≠ 1, then x = y if and only if log a x = log a y.
Log/Exponential Conversion Practice. Rewrite as a logarithmic equation: log = The log is the exponent! 4 The base of the exponent is the base of the log.
Holt McDougal Algebra Exponential and Logarithmic Equations and Inequalities 4-5 Exponential and Logarithmic Equations and Inequalities Holt Algebra.
3.4 Solving Exponential and Logarithmic Equations.
LOGARITHMIC AND EXPONENTIAL EQUATIONS Intro to logarithms and solving exponential equations.
Logarithmic Functions & Their Graphs Goals— Recognize and evaluate logarithmic functions with base a Graph Logarithmic functions Recognize, evaluate, and.
Ch. 8.5 Exponential and Logarithmic Equations
Solving Exponential and Logarithmic Equations
Logarithmic Functions and Their Graphs
8.6 Solving Exponential & Logarithmic Equations
Chapter 5 Logarithmic Functions.
Exponential & Logarithmic Equations
Solving Exponential and Logarithmic Equations
Logarithmic and exponential equations
Keeper #39 Solving Logarithmic Equations and Inequalities
3.4 Exponential and Logarithmic Equations
Solving Logarithmic Equations
EXPONENTIAL FUNCTION where (base) b > 0 and b For 0 < b < 1,
Properties of Logarithms
U6D11 Have out: Bellwork: Solve for x.
Using Properties of Logarithms
Logarithmic and exponential equations
Logarithmic Functions
Presentation transcript:

1. Expand the following: 2. Condense the following: Warm-upWarm-up

How tall and wide is the arch if its curve is described by the exponential equation below

Summary 1. Log = number or Exponential form = number 2. Exponent = Exponent (same base) 3. Exponent = Exponent (different base) 4. log = log

Log and Exponential Equations can be solved using various approaches Choose an appropriate method and solve for x: Hint: Use log properties and rewrite the left side as a single log expression.

4.6 Logarithmic and Exponential Equations 1.Express the left side as a single logarithm. 2. Rewrite as an exponential expression Always check your solution to assure the solution is in the domain of the problem.

Solving a Logarithmic Equation

Solve an Exponential Equation with a different base on each side. Take the natural log (base e) or log (base 10) of each side

Solve an Exponential Equation that is quadratic in form

Summary 1. Log = number or Exponential form = number 2. Exponent = Exponent (same base) 3. Exponent = Exponent (different base) 4. log = log

This is an APPROXIMATE solution. Solve using your graphing calculator