
Public learning track
Linear Functions, Forms, Slopes, and Direct Variation
9th Grade · Math · Open Global Math
17 lessons
Goal
Analyze, graph, convert, and model with linear functions in all forms, including slope relationships and direct variation.
Featured Diagrams
Calculating Slope Between Two Points Using the Slope Formula
17 lessons
0 of 17 done
- 1Calculating Slope Between Two Points Using the Slope FormulaUp nextStart
- 2Calculating Rate of Change from EquationsPremiumNot started yet
- 3Identifying x-Intercepts from Graphs of Linear FunctionsNot started yet
- 4Identifying y-Intercepts from Graphs of Linear FunctionsNot started yet
- 5Graphing Linear Functions from Slope-Intercept FormNot started yet
- 6Graphing Linear Functions from Point-Slope FormNot started yet
- 7Graphing Linear Functions from Standard Form Using InterceptsNot started yet
- 8Converting Between Slope-Intercept and Standard FormNot started yet
- 9Converting from Point-Slope Form to Slope-Intercept FormNot started yet
- 10Converting from Point-Slope Form to Standard FormNot started yet
- 11Writing Linear Equations Given Slope and a PointNot started yet
- 12Writing Linear Equations Given Two PointsNot started yet
- 13Writing Linear Equations from Graphs and TablesNot started yet
- 14Slopes of Parallel and Perpendicular LinesNot started yet
- 15Writing Equations of Parallel and Perpendicular LinesNot started yet
- 16Modeling Direct Variation RelationshipsNot started yet
- 17Writing Linear Functions from DataNot started yet
Curriculum Framework
9th Grade · Math · Open Global Math
1
11 lessons
Functions, Domain, Range, and Piecewise Representations
Evaluate functions, determine domain and range across multiple notations, and construct and analyze piecewise-defined functions.
2
17 lessons
Linear Functions, Forms, Slopes, and Direct Variation
Analyze, graph, convert, and model with linear functions in all forms, including slope relationships and direct variation.
3
9 lessons
Quadratic Functions, Forms, and Key Attributes
Analyze, convert, graph, and model quadratic functions across standard, vertex, and factored forms.
4
11 lessons
Exponential and Logarithmic Functions, Graphs, and Equations
Model growth and decay, graph exponential and logarithmic functions across bases 2, 10, and e, and solve equations.
5
8 lessons
Parent Function Families and Inverse Variation
Graph and analyze parent functions (absolute value, square root, cube root, reciprocal, cubic, sine/cosine) and model inverse variation.
6
7 lessons
Transformations of Parent Functions
Apply, identify, and formulate vertical and horizontal translations, stretches, compressions, and reflections across all function families.
7
7 lessons
Inverse Functions, Composition, and Invertibility
Determine inverse functions algebraically, verify inverses via composition and graphical symmetry, and restrict domains for one-to-one invertibility.
8
9 lessons
Arithmetic and Geometric Sequences and Series
Represent arithmetic and geometric sequences recursively and explicitly, link to linear/exponential growth, and derive and evaluate geometric series.
9
8 lessons
Coordinate Intersections, Graphical Solutions, and Equivalence
Explain graphs as solution sets, find intersection coordinates of y = f(x) and y = g(x) to solve f(x) = g(x), and compare growth models.