Equation of a Straight Line and Writing Equations for Horizontal and Vertical Lines

The video tutorial explains how to write equations for vertical and horizontal lines, emphasizing their intersections with the x-axis and y-axis. It introduces the y=mx+c formula for straight lines, detailing the roles of the gradient (m) and y-intercept (c). The tutorial covers calculating the gradient by examining changes in y and x, and demonstrates deriving line equations from given coordinates.

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