Annah L.

asked • 05/17/21

When the equation f(x)=cos x is changed to g(x)=1/3cos x , what impact does this have on the graph?

Describe the key features that change (amplitude, period, or midline).


Choices:

  1. The graph is "compacted or shrunk" vertically; the amplitude changes from 1 to 1/3 
  2. The graph is "stretched" vertically; the amplitude changes from 1 to 3 
  3. The graph is "stretched" vertically; the amplitude changes from 3 to 1
  4. The graph is "compacted or shrunk" vertically; the amplitude changes from 1/3 to 1



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