## U5 L12 Lesson Notes.pdf - Section 3: Homework: Substitution

U5 L12 Lesson Notes.pdf
U5 L12 Lesson Notes.pdf

# An Intersection Point, and What Happens Around It

Unit 9: Systems of Equations
Lesson 12 of 20

## Big Idea: Often the truest solution to a problem is that "it depends". Substitution is an efficient method for finding the precise intersection of two lines; a graph makes it clear what happens on either side of that point.

Print Lesson
Standards:
Subject(s):
43 minutes

### James Dunseith

##### Similar Lessons

###### What is Algebra?
Algebra II » Modeling with Algebra
Big Idea: Algebra is built on axioms and definitions and relies on proofs just as much as geometry.
Favorites(42)
Resources(19)
Fort Collins, CO
Environment: Suburban

###### Formative Assessment: Systems of Equations and Inequalities
12th Grade Math » Matrices and Systems
Big Idea: A quick assessment will give you and your students feedback about the second half of the unit.
Favorites(1)
Resources(6)
Troy, MI
Environment: Suburban

###### Graphing Linear Systems of Equations (Day 1 of 2)
Algebra I » Systems of Linear Equations
Big Idea: Students will discover that intersecting lines on a coordinate plane share a common solution, forming a system of equation.
Favorites(82)
Resources(25)
Washington, DC
Environment: Urban