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Mathematics 12 Online
OpenStudy (aonz):

Help please!!! The equation of the path of a ball thrown from the origin is y = x(12 − x), with units in metres (the origin is at ground level). Show that the gradient of the flight path when x = a is the opposite of the gradient of the flight path when x = 12 − a. What does this tell you about the two directions of flight?

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