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Published byVernon Hunter Modified over 9 years ago
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Let c be a positive real number. Vertical and Horizontal Shifts in the graph of y = f(x) are represented as follows. 1. Vertical shift c upward: h(x) = f(x) + c 2. Vertical shift c downward: h(x) = f(x)-c 3. Horizontal shift c units to the right: h(x) = f(x-c) 4. Horizontal shift c units to the left: h(x) = f(x+c)
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Turn to Page 49 Problems 15 – 18
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Reflections in the coordinate axes of the graph of y = f(x) are represented by: 1. Reflection in the x-axis: h(x) = -f(x) 2. Reflection in the y-axis: h(x) = f(-x)
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Horizontal, vertical, and reflection shifts are all call rigid transformations. These transformations only change the position of the graph in the coordinate plane Non-rigid transformations are those that cause distortion of the graph.
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A non-rigid transformation of the graph y= f(x) is represented by y = cf(x), where the transformation is a vertical stretch if c > 1 and a vertical shrink if 0 < c< 1.
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Another non-rigid transformation of the graph y = f(x) is represented by h(x) = f(cx), where the transformation is a horizontal shrink if c > 1 and a horizontal stretch if 0<c<1
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Pg. 48 -50 #9-12, 14-20, 22-42 even, 53-74
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