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3.4 Graphing Techniques; Transformations

3.4 Graphing Techniques; Transformations. (2, 6). (1, 3). (2, 4). (1, 1). (0, 2). (0, 0). (2, 4). (0, 0). (1, 1). (2, 1). (1, -2). (0, -3). c>0 The graph of f ( x ) +c is the same as the graph of f ( x ) but shifted UP by c .

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3.4 Graphing Techniques; Transformations

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  1. 3.4 Graphing Techniques; Transformations

  2. (2, 6) (1, 3) (2, 4) (1, 1) (0, 2) (0, 0)

  3. (2, 4) (0, 0) (1, 1) (2, 1) (1, -2) (0, -3)

  4. c>0 The graph of f(x)+c is the same as the graph of f(x)but shifted UP by c. For example: c = 2 then f(x)+2 shifts f(x) up by 2. c<0 The graph of f(x)+c is the same as the graph of f(x) but shifted DOWN by c. For example: c = -3 then f(x)+(-3) = f(x)-3shifts f(x)down by 3. Vertical Shifts

  5. Horizontal Shifts If the argument x of a function f is replaced by x-h, h a real number, the graph of the new function y = f(x-h) is the graph of f shifted horizontally left (if h < 0) or right (if h > 0).

  6. Reflections about the x-Axis and the y-Axis • The graph of g= - f(x) is the same as graph of f(x) but reflected about the x-axis. • The graph of g= f(-x) is the same as graph of f(x) but reflected about the y-axis.

  7. Compression and Stretches • The graph of y=af(x)is obtained from the graph of y=f(x)by vertically stretching the graph if a > 1 or vertically compressing the graph if 0 < a < 1. • The graph of y=f(ax)is obtained from the graph of y=f(x)by horizontally compressing the graph if a > 1 or horizontally stretching the graph if 0 < a < 1.

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