10.2 Linear Graphs
1. General Form
The graph of an equation of the form y = mx + b is a straight line, where b and m are constant.
The graph of an equation that is a straight line is called a linear graph.
2. Special linear graph:
- y = c — a horizontal straight line that is parallel to the x-axis
- x = a — a vertical straight line which is parallel to the y-axis
3. How to draw the graph of y = mx + b
- y = – (1/3)x + 2
- How to create a graph of the linear equation y = 2x + 7
- How to create a graph of the linear equation 5x + 2y = 20
4. Does a point A (x, y) lie on the graph?
5. Homework:
- Handout: 2 pages
- Workbook: page 10. #4, 5, 6, 7, 8
