Hi everyone:) Sorry for not keeping you updated, had some difficulties with registration, and turns out i've been registered already:) So on friday we learned hot to create equations for sinusoidal functions.
The formula is : f(x)=a sin b(x-c)+d OR f(x)=a cos b(x-c)+d
And also here are some steps for graphing:
1. Identify the middle axis. This determines if there is any up or down shifting-the d value.
2. Find the amplitude- the a value
3. Determine the period and then calculate the b value.
4. Identify the type of original wave-either y=sin x OR y=cos x
5. Create the first equation including the a, b, c, and d values.
6.Create the second and third equations including the a, b, c, and d values.
7.Double check the horizontal shift symbols
8.Double check the symbol of the value in the equation.
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