Question

simplify y=3sin(3pi*x+9) into y=asin[b(x+c)] form

Answer 1

take 3pi as the common factor so the term c becomes 3/pi and b is 3pi

a should be obvious

Answer 2

Okay but how could b be 3pi when I need to find the period. That would make it 2 over 3?

Answer 3

well the period is 3pi/2pi so the period is 3/2

Answer 4

period is 2pi/b

Answer 5

So therefor it would be 2/3. Okay, thanks for the answer.

Answer 6

lol... oops... yes the period is 2/3

Answer 7

Its okay lol.

Answer 8

here is a graph just to check

hope it helps

Answer 9

Thanks :)