Post on 25-Jul-2020
Unit 6 Day 2 Graphing Systems of Equations.notebook
1
December 06, 2019
Dec 54:50 PM
Foundations in Algebra
Mrs. Hall
December 6, 2019
Get out your materials for class.
Dec 54:59 PM
Graphing Systems of Equations
EQ: How can you solve systems of equations by graphing?
Day 2
Unit 6 Day 2 Graphing Systems of Equations.notebook
2
December 06, 2019
Systems of Equations
Review from yesterday
The solution to a system is the point where the equations intersect.
6x 9y = 15
x y = 4
Is (9, 5) a solution?
Is (7, 3) a solution?
Unit 6 Day 2 Graphing Systems of Equations.notebook
3
December 06, 2019
Classifying Systems of Equations
Consistent Inconsistenthas at least one solution no solution
Independent Dependenthas exactly one solution
has infinite solutions
Consistent Independent
Inconsistent ConsistentDependent
Unit 6 Day 2 Graphing Systems of Equations.notebook
4
December 06, 2019
Solve by Graphing
y = 3x 2
x + 3y = 4Steps:
1. Write both equations in slopeintercept form (y = mx + b)
2. Graph both equations. Put yintercept on first then count rise over run.
3. Write the ordered pair where the two lines intersect.
4. Classify what type.
Solve by Graphing
y = 3x 2
x + 3y = 4
Unit 6 Day 2 Graphing Systems of Equations.notebook
5
December 06, 2019
Solve by Graphing
x + 4y = 20
6x 4y = 8
Solve by Graphing
4x 3y = 9
8x 6y = 12
Unit 6 Day 2 Graphing Systems of Equations.notebook
6
December 06, 2019
Solve by Graphing
y = 2
4x 2y = 8
Solve by Graphing
2x y = 3
2x + y = 1
Unit 6 Day 2 Graphing Systems of Equations.notebook
7
December 06, 2019
Solve by Graphing
y = 3x + 2
9x + 3y = 6
Dec 55:39 PM
Let's practice on our graphing calculators.
Unit 6 Day 2 Graphing Systems of Equations.notebook
8
December 06, 2019
Dec 612:13 PM
Tell whether or not the point is a solution to the system of equations.
Is (2,1) a solution?
Dec 612:13 PM
Tell whether or not the point is a solution to the system of equations.
Is (1, 1) a solution? x = 1
x y = 2
Unit 6 Day 2 Graphing Systems of Equations.notebook
9
December 06, 2019
Dec 612:13 PM
Classwork/Homework:
Graphing Systems of Equations worksheet