Linear graph

Coordinate geometry uses a coordinate plane, which is made up of two perpendicular number lines: the x-axis (horizontal) and the y-axis (vertical). They intersect at a point called the origin (0,0).

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Linear graphs, represented by equations like $y = mx + b$, are incredibly versatile. We've talked about the slope ($m$) and y-intercept ($b$), but let's dive into some common real-world applications and special situations.

Graphing a linear equation is about visualizing the relationship between two variables, usually x and y, that results in a straight line. The most common form you'll see is the slope-intercept form: y = mx + b.