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You should have seen some graph transformations before, such as translations and reflections - recall that reflections in the x x -axis flip f (x) f (x) vertically and reflections in the y y -axis flip f (x) f (x) horizontally. Here, we will also look at stretches. There are 4 main types of graph transformation that we will cover.

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The graph of the new function is easy to describe: just take every point in the graph of f (x), and move it up a distance of d. That is, if (a, b) is a point in the graph of f (x), then (a, b + d) is a point in the graph of f (x) + d. As an explanation for what's written above: If (a, b) is a point in the graph of f (x), then that means f (a) = b.

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Function Transformations. Transformation of functions means that the curve representing the graph either "moves to left/right/up/down" or "it expands or compresses" or "it reflects". For example, the graph of the function f (x) = x 2 + 3 is obtained by just moving the graph of g (x) = x 2 by 3 units up. Function transformations are very helpful.

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VARIATIONS OF SINE AND COSINE FUNCTIONS. Given an equation in the form f(x) = A sin(Bx − C) + D or f(x) = A cos(Bx − C) + D, C B is the phase shift and D is the vertical shift. Example 2.4.3: Identifying the Phase Shift of a Function. Determine the direction and magnitude of the phase shift for f(x) = sin(x + π 6) − 2.

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The first transformation we'll look at is a vertical shift. Given the graph of f (x) f ( x) the graph of g(x) = f (x) +c g ( x) = f ( x) + c will be the graph of f (x) f ( x) shifted up by c c units if c c is positive and or down by c c units if c c is negative. So, if we can graph f (x) f ( x) getting the graph of g(x) g ( x) is fairly easy.

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1. Functions & Graphs - Worksheets 2. About Graph Transformations 3. Functions & Graphs - Videos, Theory Guides & Mind Maps 4. Higher Maths Essential Skills 5. Higher Maths Exam Worksheets by Topic 6. Higher Maths Past & Practice Papers by Topic 7. Higher Maths Videos, Theory Guides, Mind Maps & Worksheets 8. Higher Maths Past & Practice Papers

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This cheat sheet covers the high school math concept - Graph Transformations. This concept is a part of Calculus and is generally covered along with functions. A good knowledge of basic functions and their domains and ranges is a must to understand graphs and their transformations.

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Graph transformations involve performing transformations such as translations and reflections on the graph of a function. In GCSE mathematics you may be asked to sketch a graph after a given transformation, or asked to write down the position of a coordinate after a transformation has been applied.

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To do this we need to solve the quadratic equation of ++ − 2 2 + ( − 2) = ( = 0 − 1 =0 3 2 = 0 + 2)( − 1) = 0 +2 =0 Hence the roots of the function are at: =0 = 1 = −2 At coordinates (0,0), (1,0) & (−2,0) are where the x intercepts will be located. The same method can be applied to sketching graphs of quartic functions.

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The function transformation cheat sheet contains a written description of each transformation, what it looks like in function notation, and what visually happens to the graph. (The parent absolute value function, f(x) = |x| was utilized for the visual as all of the transformations are crisp and clear).

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A one-page cheat sheet on Graph Transformations, covering summarized theory and the most important formulas. Free Download (PDF)

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Translations are a slide or shift. Translations can be achieved by performing two composite reflections over parallel lines. Translations are isometric, and preserve orientation. Coordinate plane rules: (x, y) (x ± h, y ± k) where h and k are the horizontal and vertical shifts. Note: If movement is left, then h is negative.

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Sheet What really is a function? Before we can properly define a function, we must first understand mappings. A A mapping takes a set of numbers = 2 and transforms them into another set of numbers. Mappings are often represented by algebraic equations.

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TRANSFORMATION RULES Let f(x) be the original function and let c > 0, k > 0 be real numbers. Notice that a horizontal stretch is the same as a vertical shrink, and a horizontal shrink is the same as a vertical stretch. Figure 1: Vertical Stretch or Horizontal Shrink Figure 2: Vertical Shrink or Horizontal Stretch csusm.edu/stemsc XXXX @csusm_stemsc

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Transformations of Graphs Vertical and Horizontal Shifts of Graphs Reflecting, Stretching, and Shrinking of Graphs Combining Transformations Vertical and Horizontal Shifts of Graphs Graphs of Some Basic Functions: Vertical Shifts of Graphs: Horizontal Shifts of Graphs: Example: Solution: Example: Solution: Additional Example 1:

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Summary of Transformations . March 2017 MVCC Learning Commons Math Lab . Graph Draw the graph of f(x) and: Changes in f(x). Shift the graph f(x) to the left c units -subtract c from x coordinate . Shift the graph f(x) to the right c units -add c to x coordinate . Reflection about the x-axis ;