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How to Find the Slope of a Line on an Excel Graph. In math and statistics, you may occasionally need to calculate the slope of a line generated by coordinates in the (x,y) format.
Revise how to work out the equation of a straight line using coordinates and the gradient, and vice versa. BBC Bitesize Scotland SQA National 5 Maths.
Learn how to find equations of parallel lines, work out the gradient of perpendicular lines, and prove that given lines are parallel or perpendicular.
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