Applications of Differentiation : Math Review
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Derivatives & Straight Line Graphs
The derivative f'(x) is the gradient of the tangent of the graph of f at the point x. In a straight line graph the derivative is the gradient of the graph.
The normal to a curve at any point is the line perpendicular
to the tangent at that point.
The gradient of two perpendicular lines has a product of –1.
Differentiation math problems for you to try.
Solutions: 1) -1 2) -1 3) -2 4) 2