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# Help C2 Question watch

1. can someone explain the second part
2. (Original post by mh99)
can someone explain the second part
is the period of the graph, what's the period of the graph from the coordinates? Equate those two to find a. Then just sub in a point to find b.
3. (Original post by Zacken)
is the period of the graph, what's the period of the graph from the coordinates? Equate those two to find a. Then just sub in a point to find b.
Thanks this make more sense now but how did you find the period of graph at the start
4. (Original post by mh99)
Thanks this make more sense now but how did you find the period of graph at the start
Function transformations. compresses the graph of by a units.

So since the period of the sine graph is is then the period of the squashed sine graph has period . The translate of +b does not affect the period.
5. (Original post by Zacken)
Function transformations. compresses the graph of by a units.

So since the period of the sine graph is is then the period of the squashed sine graph has period . The translate of +b does not affect the period.
Okay, Thanks
6. (Original post by mh99)
Okay, Thanks
No problem!

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