Review Systems of Equations

Slides:

Advertisements

Similar presentations

Solving Systems of three equations with three variables Using substitution or elimination.

Advertisements

COMPASS Practice Test 13 Quadratics. This slide presentation will focus on quadratics. Quadratics will always have a variable raised to the second power,

4.3 Systems of Equations - Elimination Objective: The student will be able to: Solve systems of equations using elimination with addition and subtraction.

Do Now Pass out calculators. Solve the following system by graphing: Graph paper is in the back. 5x + 2y = 9 x + y = -3 Solve the following system by using.

3.5 Solving systems of equations in 3 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.

Solving Systems of Equations: Elimination Method.

Solving Linear Systems Substitution Method Lisa Biesinger Coronado High School Henderson,Nevada.

Substitute 0 for y. Write original equation. To find the x- intercept, substitute 0 for y and solve for x. SOLUTION Find the x- intercept and the y- intercept.

Substitute 0 for y. Write original equation. To find the x- intercept, substitute 0 for y and solve for x. SOLUTION Find the x- intercept and the y- intercept.

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 =

Do Now 1/13/12  In your notebook, list the possible ways to solve a linear system. Then solve the following systems. 5x + 6y = 50 -x + 6y = 26 -8y + 6x.

Elimination Day 2. When the two equations don’t have an opposite, what do you have to do? 1.

Substitution Method: 1. Solve the following system of equations by substitution. Step 1 is already completed. Step 2:Substitute x+3 into 2 nd equation.

Another method for solving systems of equations is elimination

3.6 Solving Absolute Value Equations and Inequalities

Solving by Elimination Example 1: STEP 2: Look for opposite terms. STEP 1: Write both equations in Standard Form to line up like variables. STEP 5: Solve.

Solving Systems of Equations: The Elimination Method Solving Systems of Equations: The Elimination Method Solving Systems of Equations: The Elimination.

Section 5.3 Solving Systems of Equations Using the Elimination Method There are two methods to solve systems of equations: The Substitution Method The.

1. Graph y = 2x – 3 2. Graph y = ½ x Graph 6x + 3y = 9 4. Graph x + 2y = -1.

WARM UP GRAPHING LINES Write the equation in slope- intercept form and then Graph. (Lesson 4.7) 1.3x + y = 1 2.x + y = 0 3.y = -4 3.

SYSTEMS OF EQUATIONS. SYSTEM OF EQUATIONS -Two or more linear equations involving the same variable.

Prerequisite Skills VOCABULARY CHECK Copy and complete the statement. 2. The graph of a linear inequality in two variables is the set of all points in.

Elimination Method - Systems. Elimination Method  With the elimination method, you create like terms that add to zero.

Warm-Up Solve the system by graphing y = x + 2 x = −3 Solve the system by graphing 4x + y = 2 x − y = 3.

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.

Objective I can solve systems of equations using elimination with addition and subtraction.

Objective The student will be able to:

Solving Systems of Equations

Algebra Review Systems of Equations page 69

The student will be able to:

6-2 Solving Systems By Using Substitution

Solving Systems of Equations

Unit 7: Systems of Equations

Systems of Equations in Two and Three Variables

The student will be able to:

Solve a system of linear equation in two variables

Lesson 7-4 part 2 Solving Systems by Elimination

3.5 Solving systems of equations in 3 variables

Solving Systems of Equations using Substitution

Solving Two-Step Equations

Do Now 1) t + 3 = – 2 2) 18 – 4v = 42.

Solving Systems of Linear and Quadratic Equations

Systems of equations.

3.2a – Solving Systems algebraically

The student will be able to:

Notes Solving a System by Elimination

The student will be able to:

Chapter 11 Section 4.

Solving Systems of Equations

SIMULTANEOUS EQUATIONS 1

If you can easily isolate one of the variables,

Solving Systems of Linear and Quadratic Equations

Objectives Identify solutions of linear equations in two variables.

Solving systems using substitution

The student will be able to:

The student will be able to:

Systems of Equations Solve by Graphing.

Solving Systems of Equations

Example 2B: Solving Linear Systems by Elimination

1-2 Solving Linear Systems

The student will be able to:

Unit 7: Systems of Equations

Equations With Two Variables pages

Warm- Up: Solve by Substitution

The student will be able to:

The student will be able to:

Step 1: Put the equations in Standard Form. Standard Form: Ax + By = C

Unit 7: Systems of Equations

Solve by Substitution 2x + y = 7 3x + 3y = - 3.

Presentation transcript:

Review Systems of Equations Methods to solve Copy each example in your composition book!

Solve by Graphing https://www.youtube.com/watch?v=cuNpXve18Pc Remember that solutions to systems must be written as (x,y).

Solve by Substitution: https://www.youtube.com/watch?v=KNwwu5wjcaA

Solve by Elimination (Combination) https://www.youtube.com/watch?v=xB-oXaCoJoc

Practice Work on the ten problems with your table. Some of them are systems of equations problems and some of them are not. You should be able to read a problem and know when it needs one variable and when it needs two. Check your answers with Mr. Howard when you are finished.