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Comparing Sin and CoSine

Author:Maggie Kane

Comparing Sin and Cosine

First, display only the sin graph by clicking either the purple button off. Now using the sliders, or manually changing the numbers, see how each variable affects the graph.

Which variable moves the graph left and right?

Select all that apply
  • A
  • B
  • C
  • D
  • E
Check my answer (3)

Which variable stretches / compresses the graph horizontally?

Select all that apply
  • A
  • B
  • C
  • D
Check my answer (3)

Which variable moves the graph up and down?

Select all that apply
  • A
  • B
  • C
  • D
  • E
Check my answer (3)

Which variable stretches / compresses the graph vertically?

Select all that apply
  • A
  • B
  • C
  • D
Check my answer (3)
Now click the purple button again, making the cosine graph visible. We haven't used variable c yet, so explore what changes with the variable c slider. What happens if we put variable sliders c and d on animate? (clicking the small play triangle on the right) Do you notice anything about the 2 graphs?
Finally, set c=0 and d (you can set d by typing pi/2)

What happened to the 2 graphs?

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