Linear Relationships
Vertical and Horizontal Lines
Modelling with Linear Relationships
Linear Algebra Skills
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The Feasible Region (Fete Stall Series)
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All horizontal lines have equations in the form of y=c. The gradient of a horizontal line is zero.
All vertical lines have equations in the form x=a. The gradient of a vertical line is undefined.
All vertical lines have equations in the form x=a. The gradient of a vertical line is undefined.