TODAY IN ALGEBRA…  Learning Goal: 7.2 You will solve systems of linear equations by Substitution  Independent Practice.

Slides:



Advertisements
Similar presentations
Solve a System Algebraically
Advertisements

TODAY IN ALGEBRA…  Warm Up: Review Distribution and Combine like terms  Learning Goal: 3.2 You will solve 2- step equations using Algebra  Independent.
TODAY IN ALGEBRA…  WARM UP: Determining whether an ordered pair is a solution and graphing linear equations  Learning Goal: 6.7 You will graph linear.
Warm up 1. State the center and radius. 2. Write the following in standard form. Center (-9, 2) r = 8.
TODAY IN ALGEBRA…  Warm Up: Solving a system by Elimination  Learning Goal: 7.4 You will solve systems of linear equations by Elimination with multiplication.
TODAY IN ALGEBRA…  Learning Goal: 7.3 You will solve systems of linear equations by Elimination  Independent Practice  MID CH.7 TEST-MONDAY/TUESDAY!
TODAY IN ALGEBRA…  Warm Up: Review Cross Multiplication  Learning Goal: 3.6 You will solve proportions using cross products  Independent Practice.
TODAY IN ALGEBRA…  Warm up: Find products of special polynomials  Learning Target: 9.5 You will factor trinomials  Independent Practice  HW #4 Due.
TODAY IN ALGEBRA… Warm up: 5.2 Review-Writing an equation of a line given two points Learning Goal: 5.3 Writing a linear equation in Point-Slope form.
Drill Solve the linear system by substitution. 1.y = 6x – 11 -2x – 3y = x + y = 6 -5x – y = 21.
TODAY IN ALGEBRA 2.0…  Review: Solving for a given side  Learning Target: 13.1 Finding an angle using inverse Trigonometry  Independent Practice.
TODAY IN ALGEBRA…  Warm up: Find products of special polynomials  Learning Target: 9.4 You will solve polynomial equations in factored form  Independent.
TODAY IN GEOMETRY…  Additional “yellow notes” – half sheet  Learning Target : 10.7 You will write equations of circles in the coordinate plane.  Independent.
TODAY IN ALGEBRA…  Warm up: Calculating Slope  Learning Goal: 5.1b You will write equations of lines in slope intercept form given two points  Independent.
Thinking Mathematically Algebra: Graphs, Functions and Linear Systems 7.3 Systems of Linear Equations In Two Variables.
7.1 SOLVING SYSTEMS BY GRAPHING The students will be able to: Identify solutions of linear equations in two variables. Solve systems of linear equations.
Systems Warm-Up Solve each linear system. 1.x + 7 = y -4x + 2 = y 2.x + 2y = 10 3y = 30 – 2x.
Chapter 7 – Solving Systems of Linear Equations
TODAY IN ALGEBRA…  Warm Up: Graphing Linear Equations and solving for y.  Learning Goal: 7.1 You will solve systems on linear equations by Graphing 
TODAY IN ALGEBRA 2.0…  REVIEW: 7.5 Expand and Condense LOGs  COMPLETE: HW #6  Learning Target: 7.6 You will solve exponential equations by changing.
TODAY IN ALGEBRA…  WARM UP: Graphing linear inequalities  Learning Goal: 7.6 Solve systems of Linear Inequalities  Independent Practice  Ch.7 TEST-Wednesday/Thursday.
3x – 5y = 11 x = 3y + 1 Do Now. Homework Solutions 2)2x – 2y = – 6 y = – 2x 2x – 2(– 2x) = – 6 2x + 4x = – 6 6x = – 6 x = – 1y = – 2x y = – 2(– 1) y =
TODAY IN ALGEBRA…  Warm Up: Solving one-step equations  Learning Goal: 6.2 You will solve Inequalities using multiplication and division  Independent.
Solving Systems of Equations Algebraically STEPS: 1.Solve for a variable in either equation. Get variable alone (x or y) 2.Substitute for this variable.
Solving Linear Systems by Substitution O Chapter 7 Section 2.
SOLVING SYSTEMS ALGEBRAICALLY SECTION 3-2. SOLVING BY SUBSTITUTION 1) 3x + 4y = 12 STEP 1 : SOLVE ONE EQUATION FOR ONE OF THE VARIABLES 2) 2x + y = 10.
TODAY IN ALGEBRA…  WARM UP: Solving Compound Inequalities and Absolute Value Equations  In-Class Assignment: Graphing Absolute Value Inequalities  Learning.
TODAY IN ALGEBRA 2.0…  Warm Up: Multiplying Rational Functions  Complete HW #3  Learning Target 1: 8.4 continued…You will DIVIDE Rational Functions.
Homework Log Wed 10/14 Lesson 3 – 1 Learning Objective: To solve systems by graphing Hw: Pg. 138 #7-13, 29, 31, 34.
TODAY IN ALGEBRA…  Warm up: Writing an equation of a line given two points  Learning Goal: 5.2 You will write an equation of a line in slope-intercept.
TODAY IN ALGEBRA…  WARM UP: Writing parallel and perpendicular equations  Learning Goal: 5.6 You will make scatter plots and write equations to model.
Complete the DO NOW in your packets
Chapter 3 Examples Section 5 Solving System of Equations Algebraically with 3 variables.
Solving Linear Systems by Substitution
TODAY IN ALGEBRA 2.0…  REVIEW: Solving Exponential Equations  Learning Target 1: 7.6 You will solve exponential equations by using logarithms  Independent.
TODAY IN ALGEBRA 2.0…  REVIEW: HW #3 Exponential Growth and Decay  Learning Target 1: 7.4 You will evaluate logarithms.  Independent Practice.
Solving One Step Equations Algebra I. Addition and Subtraction One Step Equations A solution of an equation is the value or values of the variable that.
Notes 6.5, Date__________ (Substitution). To solve using Substitution: 1.Solve one equation for one variable (choose the variable with a coefficient of.
Solve Linear Systems by Elimination February 3, 2014 Pages
TODAY IN ALGEBRA…  Warm Up: Writing equation in slope- intercept form, then identifying the slope and y-intercept  Learning Goal: 4.6 You will write.
TODAY IN ALGEBRA…  Warm Up: Review solving Multi-step equations  15 minutes: Finish Mid-Ch.3 Test  Learning Goal: 3.4 You will solve equations with.
Algebra Review. Systems of Equations Review: Substitution Linear Combination 2 Methods to Solve:
TODAY IN ALGEBRA 2.0…  Review: Solving Linear Systems by Graphing  Learning Goal 1: 3.2 Solving Linear Systems by Substitution with one equation solved.
TODAY IN ALGEBRA…  Warm Up: Solving for y  Learning Goal: 4.3 You will graph a linear equation using intercepts  Independent Practice  Mid. Ch.4 TEST-Monday/Tuesday!
Algebra 2 Chapter 3 Review Sections: 3-1, 3-2 part 1 & 2, 3-3, and 3-5.
Warm Up Find the solution to linear system using the substitution method. 1) 2x = 82) x = 3y - 11 x + y = 2 2x – 5y = 33 x + y = 2 2x – 5y = 33.
6) x + 2y = 2 x – 4y = 14.
Entry Task   by.
Solve Linear Systems by Graphing
Warm-Up 2-1.
Lesson 0 – 4 & 0 – 5 Algebraic Expressions & Linear Equations
Solving Linear Systems by Graphing
Solving Linear Systems by Linear Combinations
Solving Linear Systems Algebraically
Solve a system of linear equation in two variables
Solving Equations with variables on each side
Linear Programming WKST
Warm-up 1. Solve the system of equations 3x + 2y = 12 and x – y = – 1 graphically. 2. Solve the system. Then classify the system as consistent and independent,
Systems of Linear Equations
Algebra 2 Ch.3 Notes Page 15 P Solving Systems Algebraically.
Systems of Equations Solve by Graphing.
Section 8.2 Part 2 Solving Systems by Substitution
Solving Systems of Equations By Substitution
7.1 Solving Systems of Equations
Chapter 9 Lesson 4 Solve Linear Systems By Substitution
Warm-up 1. 5x – 4 = 2x (x + 2) + 3x = 2 Solve for the variable 1. 5x – 4 = 2x (x + 2) + 3x = 2.
Lesson 0 – 8 Systems of Linear Equations
3.6 Systems with Three Variables
Warm- Up: Solve by Substitution
Solve by Substitution 2x + y = 7 3x + 3y = - 3.
Presentation transcript:

TODAY IN ALGEBRA…  Learning Goal: 7.2 You will solve systems of linear equations by Substitution  Independent Practice

7.2 SOLVING LINEAR SYSTEMS BY SUBSTITUTION STEPS FOR SOLVING A LINEAR SYSTEM BY SUBSTITUTION: STEP 1: Solve for 1 variable for one of the two equations (it doesn’t matter which equation you start with and which variable you choose to solve for). STEP 2: Substitute one equation into the other and solve for the given variable. STEP 3: Substitute the solution from STEP 2 into the equation you solved for from STEP 1 and solve for the given variable. THIS IS MUCH EASIER WITH AN EXAMPLE!

7.2 SOLVING LINEAR SYSTEMS BY SUBSTITUTION

HOMEWORK #2: Pg. 439: 4-24 even, 31 If finished, work on other assignments: HW #1: Pg. 430: 3-10, 12-15, 22, 23, 32