How can we describe it?
Mathematics, Grade 9
MTH1W1 (Grade 9 De-streamed)
Working with Ordered Pairs
Concepts
- Cartesian plane and Cartesian coordinates
- coordinates to describe location
- determining if a point satisfies a given linear or non-linear relation
- meaning of ordered pairs in different contexts
- identifying points of intersection
Relevant Links
Slope
Concepts
- definition of slope
- slope as rate of change
Student Resources
- Lesson Notes
- Key Questions
- Help with Slope
- Slope Calculator
- Open Questions: Slope
- Practice: Finding Slope from a Graph
- Practice: Finding Slope from Two Points
- Practice: Graphing a Line Using Slope and a Point
- Practice: Finding a Coordinate Using Slope
- Contest Problems
- EQAO Problems
- Check Your Understanding
Relevant Links
y = mx + b FORM FOR THE EQUATION OF A LINE
Concepts
- identifying slopes and y-intercepts of lines
- using slopes and y-intercepts to graph lines
- equations of lines using slopes and y-intercepts
Student Resources
Relevant Links
Equations of Lines Using Slope and a Point
Concepts
- finding the equation of a line using its slope and a point on the line
- horizontal and vertical lines
Student Resources
Relevant Links
Equations of Lines Using Two Points
Concepts
- finding the equation of a line using two points on the line
Student Resources
Relevant Links
Unit Review | Part 1
Concepts
- review of all concepts covered in the first part of the “How can we describe it?” unit
Relevant Links
Translations and Reflections of Lines
Concepts
- translating lines
- reflecting lines
Relevant Links
Rotations of Lines
Concepts
- rotating lines
- parallel and perpendicular lines
Student Resources
- Lesson Notes
- Rotations of Lines Explorer
- Perpendicular Slope Explorer
- Slopes of Parallel and Perpendicular Lines
- Help with Parallel and Perpendicular Slopes
- Practice: Parallel and Perpendicular Slopes
- Practice: Parallel and Perpendicular Slopes from Points
- Equations of Parallel and Perpendicular Lines
- Practice: Equation of a Perpendicular Line
- Practice: Equation of a Perpendicular Line Using Intercepts
- Check Your Understanding
Relevant Links
Equations Versus Inequalities
Concepts
- graphing linear equations and inequalities from algebraic representations of various forms
- graphing lines using intercepts
Relevant Links
Solving Equations with Variables on Both Sides
Concepts
- solving equations that have variables on both sides