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Thread: graphing trig functions

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    graphing trig functions

    i have forgotten how to graph these kinds of functions, can someone help?


    y = -2 + 3sin((x/2)-(pi/4))? i think 3 is the amplitude the -2 means its gonna be lowered right? and the stuff inside the parenthesis is the period? im not sure. thanks in advance. is there a good study pack/guide for learning this?
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    Quote Originally Posted by slapmaxwell1 View Post
    i have forgotten how to graph these kinds of functions, can someone help?


    y = -2 + 3sin((x/2)-(pi/4))? i think 3 is the amplitude the -2 means its gonna be lowered right? and the stuff inside the parenthesis is the period? im not sure. thanks in advance. is there a good study pack/guide for learning this?
    For a trigonometric function of the form:

    $\displaystyle y = a\sin{\left(bx - c\right)} + d$


    $\displaystyle a$ is the amplitude

    $\displaystyle \frac{2\pi}{b}$ is the period

    $\displaystyle c$ is the horizontal translation

    $\displaystyle d$ is the vertical translation.
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