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Question
reading a graph is similar to reading a book. which direction should you read the graph to determine whether the function is increasing, decreasing, or constant? right to left left to right
When determining if a function is increasing, decreasing, or constant from its graph, we analyze the behavior as the input (usually on the x - axis) moves in the positive direction. In the standard coordinate system, the positive x - direction is from left to right. For an increasing function, as \(x\) (moving left to right) increases, \(y\) (the function value) also increases. For a decreasing function, as \(x\) (left to right) increases, \(y\) decreases. For a constant function, as \(x\) (left to right) increases, \(y\) remains the same.
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