rinny
01-12-2005, 07:54 PM
i saw someone else post their math question, so i have a question regarding transformations and sin waves if anyone remembers it...
question on paper: Use a sin regression to find the equation, in the form f(n)= a sin[b(n-c)] +d...State values of a, b, c, and d
now, when i graph a sin regression, it automatically gives me values ABCD (2.334, 0.016, 1.812, 6.528)
BUT
the values i originally receive are entered into a formula in the form f(n)=a sin (bn-c) +d which is not the same as the form "f(n)= a sin[b(n-c)] + d" that the question asks for because in the form f(n)= a sin[b(n-c)] + d B is OUTSIDE of the brackets and c would also be changed since when you take B outside of the brackets you use lowest common denominator and C is changed...
SO
can anyone tell me what B and C would be in this form f(n)= a sin[b(n-c)] + d ?? im thinking B would be 0.016 and c would be 113.25 so it would look like 2.334 sin[.016 (n+113.25) ] + 6.528 because if u were to distribute B back into the brackets then it would be 0.016n-1.1812???
question on paper: Use a sin regression to find the equation, in the form f(n)= a sin[b(n-c)] +d...State values of a, b, c, and d
now, when i graph a sin regression, it automatically gives me values ABCD (2.334, 0.016, 1.812, 6.528)
BUT
the values i originally receive are entered into a formula in the form f(n)=a sin (bn-c) +d which is not the same as the form "f(n)= a sin[b(n-c)] + d" that the question asks for because in the form f(n)= a sin[b(n-c)] + d B is OUTSIDE of the brackets and c would also be changed since when you take B outside of the brackets you use lowest common denominator and C is changed...
SO
can anyone tell me what B and C would be in this form f(n)= a sin[b(n-c)] + d ?? im thinking B would be 0.016 and c would be 113.25 so it would look like 2.334 sin[.016 (n+113.25) ] + 6.528 because if u were to distribute B back into the brackets then it would be 0.016n-1.1812???