Linear simultaneous equations: Correct solution? (step 7)

Slides:



Advertisements
Similar presentations
Systems of Linear Equations Vocabulary. This is a System of Linear Equations.
Advertisements

1 Beginning & Intermediate Algebra – Math 103 Math, Statistics & Physics.
Differential Equations Linear Equations with Variable Coefficients.
Checking Possible Solutions
NON LINEAR FUNCTION Quadratic Function.
Objective – To use tables to represent functions.
To make a Quadratic Equation, you let the Expression equal zero.
Movable lines class activity.
Solving System of Linear Equations
Graphing Linear Inequalities
Divisibility Rules Practice 2, 5, or 10?
BACK SOLUTION:
Factors, multiple, primes: Factors from prime factors
Factors, multiple, primes: Types of numbers from prime factors
Simple linear equation
Pythagoras: Identify the hypotenuse
Solve a system of linear equation in two variables
Linear Equations Quadratic Equations Proportion Simultaneous Equations
Fractions: Multiplying or dividing an integer by a fraction
Rounding and estimating: How many significant figures?
7.1 System of Equations Solve by graphing.
Fractions: Ready to be added?
Algebraic Patterns Algebra I ~ Unit 4, Lesson 2.
Steps to solve simple linear simultaneous equations
Equation Review Given in class 10/4/13.
Factors, multiple, primes: Prime factors
Chapter 10.
Decimals: Multiplying decimals

Differentiation: Basic differentiation
Linear simultaneous Equations: Eliminating the variable
Linear simultaneous Equations: Eliminating the variable
SIMULTANEOUS EQUATIONS 1
Evaluating expressions and Properties of operations
Representing data: Scatter diagrams – correlation strength
Solving simultaneous linear and quadratic equations

Decimals: Multiply or divide by 0.5?
Fractions: Ordering Fractions
5.1 Solving Systems of Equations by Graphing
Area: Area of a triangle
Unit 1 Representing Real Numbers
Circles: Radius or Diameter?
Systems of Equations Solve by Graphing.
Area: Area of a rectangle
Area: Area of a parallelogram
Ratio: Equivalent ratio
Equation Review.
Solve the linear system.
Decimals: Ordering decimals – version 2
Fractions: Equivalent Fractions
Rearranging formula: Is
Indices: When can you use the multiplication law?
Straight line graphs: Horizontal and vertical lines
Rounding and estimating: Spot the significant figure
Power and indices: Reciprocals
Linear simultaneous Equations: Make x the same (step 2*)
5.1 -Systems of Linear Equations
Linear and Nonlinear Systems of Equations
Linear and Nonlinear Systems of Equations
Probability: Could it be a probability?
Factors, multiple, primes: Multiples
Solving a System of Linear Equations
Fractions: Simplifies to a unit fraction?
Straight line graphs: Horizontal and vertical lines
Standard Form: Multiplying powers of 10
Bearings: Can this be a bearing?
Standard form: In standard form?
Simplifying Expressions: What are like terms?
Coordinates: Naming 2D coordinates – quadrant 1
Presentation transcript:

Linear simultaneous equations: Correct solution? (step 7) True/false Reflect Your Turn 2𝑥+3𝑦=18 6𝑥+3𝑦=30 𝒙=𝟑, 𝒚=𝟒 6𝑥−3𝑦=30 𝒙=𝟓, 𝒚=𝟑 Yes / No Yes / No Rule

Correct solution? 𝑦+2𝑥=−18 𝑦+6𝑥=30 2𝑥+3𝑦=18 6𝑥+3𝑦=30 2𝑥+𝑦=−18 Yes / No 𝒙=−𝟗, 𝒚=−𝟐 2𝑥+𝑦=−18 6𝑥−𝑦=−30 𝒙=−𝟔, 𝒚=−𝟖 2𝑥+4𝑦=−18 2𝑥−4𝑦=−30 𝒙=−𝟔, 𝒚=−𝟏.𝟓 𝑥+4𝑦=−18 𝒙=𝟐, 𝒚=−𝟒 2𝑥+3𝑦=18 6𝑥+3𝑦=30 𝒙=𝟑, 𝒚=𝟒 6𝑥−3𝑦=30 𝒙=𝟓, 𝒚=𝟑 2𝑥+𝑦=18 6𝑥−𝑦=30 𝒙=𝟕, 𝒚=𝟑 2𝑥−𝑦=18 𝒙=𝟑, 𝒚=−𝟏𝟐 Yes / No Yes / No Yes / No Yes / No Yes / No Yes / No Yes / No Yes / No

Correct solution? 𝑦+2𝑥=−18 𝑦+6𝑥=30 2𝑥+3𝑦=18 6𝑥+3𝑦=30 2𝑥+𝑦=−18 Yes / No 𝒙=−𝟗, 𝒚=−𝟐 2𝑥+𝑦=−18 6𝑥−𝑦=−30 𝒙=−𝟔, 𝒚=−𝟖 2𝑥+4𝑦=−18 2𝑥−4𝑦=−30 𝒙=−𝟔, 𝒚=−𝟏.𝟓 𝑥+4𝑦=−18 𝒙=𝟐, 𝒚=−𝟒 2𝑥+3𝑦=18 6𝑥+3𝑦=30 𝒙=𝟑, 𝒚=𝟒 6𝑥−3𝑦=30 𝒙=𝟓, 𝒚=𝟑 2𝑥+𝑦=18 6𝑥−𝑦=30 𝒙=𝟕, 𝒚=𝟑 2𝑥−𝑦=18 𝒙=𝟑, 𝒚=−𝟏𝟐 Yes / No Yes / No Yes / No Yes / No Yes / No Yes / No Yes / No Yes / No

Your Turn 4𝑥+3𝑦=23 2𝑥+3𝑦=19 2𝑥+3𝑦=18 6𝑥−3𝑦=30 2𝑥+𝑦=18 6𝑥−𝑦=30 2𝑥−𝑦=18 𝒙=𝟑, 𝒚=𝟒 2𝑥+3𝑦=18 6𝑥−3𝑦=30 𝒙=𝟔, 𝒚=𝟐 2𝑥+𝑦=18 6𝑥−𝑦=30 𝒙=𝟓, 𝒚=𝟕 2𝑥−𝑦=18 𝒙=𝟒, 𝒚=−𝟏𝟐 Yes / No Yes / No Yes / No Yes / No

Your Turn 4𝑥+3𝑦=23 2𝑥+3𝑦=19 2𝑥+3𝑦=18 6𝑥−3𝑦=30 2𝑥+𝑦=18 6𝑥−𝑦=30 2𝑥−𝑦=18 𝒙=𝟑, 𝒚=𝟒 2𝑥+3𝑦=18 6𝑥−3𝑦=30 𝒙=𝟔, 𝒚=𝟐 2𝑥+𝑦=18 6𝑥−𝑦=30 𝒙=𝟓, 𝒚=𝟕 2𝑥−𝑦=18 𝒙=𝟒, 𝒚=−𝟏𝟐 Yes / No Yes / No Yes / No Yes / No