Which transformations are needed to change the parent cosine function to y= 3cos(10(x-pi) )?

2 answers:

6 0

The parent cosine function can be transformed and translated. So, from the basic function cos(x) we can obtain function acos(bx+c). In our case, a=3- amplitude, b=10- the period change and c=-pi- the phase shift. So, the parent cosine function is mutiplied with 3 (which gives the amplitude of the function, 3*0.5=1.5). The period of the function is changed, and is 2pi/b=2pi/10=pi/5 and the cos(x) is phase shifted for c/b=-pi/10.

galina1969 [7]3 years ago

3 0

Answer:

I think it´s B

Step-by-step explanation:

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