Understanding Domain and Range Part 2

In the previous post, we have learned the graphical representation of domain and range. The domain of the function is the shadow or projection of the graph of to the x-axis (see red segment in the figure below). The range of is the projection of the graph of to the y-axis (see green segment in […]
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Understanding Domain and Range Part 1

The domain of a function is the set of x-coordinates of the points in the function. The range of the function f is the set of y-coordinates of the points in the function. So if we have a function f with points (-3, -2), (-1, 3), (2, 3), and (5,4), then the domain of the […]
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Understanding Radian Measure

A circle O has its center placed at the origin. Let A be its intersection with the x-axis at (1,0) and P be another point on its circumference. If we move P along the circumference of the circle, then we can determine the distance traveled by P. If we let A be the starting point […]
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