Comfort with the preceding arithmetic or algebra skills is useful. Keep paper, a pencil and a calculator when a lesson uses one. Grade-specific courses assume the learner’s earlier grade-level knowledge.
About this course
A line links an equation, a table and a graph. This course develops coordinate-plane skills, slope, intercepts and two-variable linear inequalities. Study the complete public source playlist from Khan Academy in English, with all 33 recordings in the on-site classroom. Original lesson titles, source order and repeated entries are preserved.
Course at a glance
| Provider / Teaching team | Khan Academy |
|---|---|
| Platform | YouTube · Khan Academy |
| Access | Free Video |
| Level | Beginner |
| Language | English |
| Videos | 33 |
| Video duration | 2h 51m · allow extra time for practice |
| Format | Self-paced recorded training |
| Certificate | Not included with video viewing |
What you’ll learn
- Plot ordered pairs and test linear-equation solutions.
- Calculate slope from graphs, tables and points.
- Construct and interpret slope-intercept equations.
- Graph linear inequalities and check solution regions.
Skills you’ll gain
- Coordinate plane
- Slope
- Intercepts
- Linear inequalities
Course Overview
Ordered-pair examples establish how to plot and test solutions. Slope is developed from graphs and pairs of points, then interpreted as a rate of change. Slope-intercept equations are constructed from a table, graph, point and slope, or two solutions. Intercepts provide another route to graphing and to understanding where one variable is zero. Inequality lessons extend the graph from a boundary line to a region of solutions, with examples checking candidate points. Distinguish the steepness of a line from its vertical position, and interpret rates with the units of both axes when the graph represents a situation.
How to study the course
- Videos 1–8: this part of the source list includes “Graphing inequalities 2” through “Graphing using x- and y-intercepts”. State the quantities and conditions before calculating. Keep a brief working note, revisit an unclear explanation and test one example before moving to another part of the material.
- Videos 9–16: this part of the source list includes “Slope of a line: negative slope” through “Slope and rate of change”. Keep equivalent expressions or representations connected. Keep a brief working note, revisit an unclear explanation and test one example before moving to another part of the material.
- Videos 17–24: this part of the source list includes “Coordinate plane: graphing points and naming quadrants” through “Coordinate plane examples”. Check each operation with a small example before extending it. Keep a brief working note, revisit an unclear explanation and test one example before moving to another part of the material.
- Videos 25–33: this part of the source list includes “Testing solutions to linear equations” through “Finding the x-intercept of a line”. Explain a result in words as well as symbols. Keep a brief working note, revisit an unclear explanation and test one example before moving to another part of the material.
Who is this for?
This course suits students, returning learners and anyone strengthening the specific mathematics named in the course. It also provides a recorded reference for revisiting a topic after an earlier lesson or study attempt. Choose examples appropriate to your background and allow time to work through the method instead of judging understanding only by how familiar the terminology sounds.
Before you start
Comfort with the preceding arithmetic or algebra skills is useful. Keep paper, a pencil and a calculator when a lesson uses one. Grade-specific courses assume the learner’s earlier grade-level knowledge.
Put the lessons into practice
Create a fictional linear cost table and derive its equation. Plot the line, interpret the slope and intercept with units, and check an additional point. Turn the situation into an inequality, identify the boundary and test one point on each side to justify the shaded region.
This optional study activity is provided by WikiFree for independent practice. Keep your working notes and use the relevant classroom recording to check a step, definition or interpretation. It is not an instructor-marked assignment.
Certificate / Assessment
Watching the public videos and using WikiFree completion tracking does not award a certificate, academic credit, an examination voucher or instructor assessment. Use your practice output to review what you can explain and repeat independently. The recorded lessons provide study material; completion tracking records your progress through that material.
Related courses for your next step
- Explore a higher-level optionIntegrated Mathematics 1: Free Course
Focus: Linear modeling · Functions and sequences
Intermediate - Explore a higher-level optionAlgebra 1: Free Course
Focus: Algebraic reasoning · Equation solving
Intermediate - Compare another approachLinear Equations and Inequalities: Free Course
Focus: Linear equations · Inequalities
Beginner
Compare course focus, level and study time
| Course | Level | Focus | Study time |
|---|---|---|---|
| This course — Graphing Lines and Slope: Free Course | Beginner | Coordinate plane · Slope · Intercepts | 2h 51m of video; practice time is additional |
| Integrated Mathematics 1: Free Course | Intermediate | Linear modeling · Functions and sequences · Coordinate geometry | 25h 46m of video; practice time is additional |
| Algebra 1: Free Course | Intermediate | Algebraic reasoning · Equation solving · Function analysis | 33h 57m of video; practice time is additional |
| Linear Equations and Inequalities: Free Course | Beginner | Linear equations · Inequalities · Proportions | 3h 14m of video; practice time is additional |
Frequently asked questions
Is this course free to watch?
Yes. The public source videos are available in the WikiFree classroom. Video viewing does not include separately priced tools, hardware, memberships or a credential.
How long does the course take?
The 33 source video occurrences total approximately 2h 51m. Allow additional time for pausing, notes, practice and revisiting an explanation.
What background do I need?
Comfort with the preceding arithmetic or algebra skills is useful. Keep paper, a pencil and a calculator when a lesson uses one. Grade-specific courses assume the learner’s earlier grade-level knowledge.
Does completing the videos award a certificate?
No. Video viewing and WikiFree progress tracking do not award a certificate, academic credit or an exam voucher.
Can I study on a phone?
Yes. The classroom supports a responsive player and searchable lesson list. A larger screen or a suitable practice environment can help with detailed calculations, diagrams and software examples.
Provider: Khan Academy. Videos play from the Khan Academy channel on YouTube.
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