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  • Perplex
    IB Math AIHL
    /
    Transformations & asymptotes
    /

    Skills

    Skill Checklist

    Track your progress across all skills in your objective. Mark your confidence level and identify areas to focus on.

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    📖 = included in formula booklet • 🚫 = not in formula booklet

    Track your progress:

    Don't know

    Working on it

    Confident

    📖 = included in formula booklet • 🚫 = not in formula booklet

    Transformations & asymptotes

    Skill Checklist

    Track your progress across all skills in your objective. Mark your confidence level and identify areas to focus on.

    7 Skills Available

    Track your progress:

    Don't know

    Working on it

    Confident

    📖 = included in formula booklet • 🚫 = not in formula booklet

    Track your progress:

    Don't know

    Working on it

    Confident

    📖 = included in formula booklet • 🚫 = not in formula booklet

    Linear Transformations

    7 skills
    Vertical translation of graphs y=f(x)+b
    AHL AI 2.8

    The graph of y=f(x)+b can be obtained from the graph of y=f(x) by a vertical translation b units upwards (if b<0, the transformation may also be called a translation ∣b∣ units down).


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    Horizontal translation
    AHL AI 2.8

    The graph of y=f(x−a) can be obtained from the graph of y=f(x) by a horizontal translation a units to the right (if a<0, the transormation may also be called a translation ∣a∣ units to the left).


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    Translation by a vector
    AHL AI 2.8

    If a point P is translated by a vector (ab​), apply a translation a units to the right and b units up:

    P(x,y)P′(x−a,y+b).
    Vertical scaling of graphs y=af(x)
    AHL AI 2.8

    The graph of y=pf(x) can be obtained from the graph of y=f(x) by a vertical stretch with scale factor p.

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    Horizontal scaling
    AHL AI 2.8

    The graph of y=f(qx) can be obtained from the graph of y=f(x) by a horizontal stretch with scale factor q1​.

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    Reflection in the x-axis
    AHL AI 2.8

    The graph of y=−f(x) can be obtained from the graph of y=f(x) by a reflection in the x-axis.


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    Reflection in the y-axis
    AHL AI 2.8

    The graph of y=f(−x) can be obtained from the graph of y=f(x) by a reflection in the y-axis.


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