Which of the following would best represent a sine function with an amplitude of 7, a period of pie/4 and a midline at y = 3

1) f(x) = 7 sin 8x + 3

2) f(x) = 3 sin 8x + 7

3) f(x) = 7 sin( pie/4 x) + 3

4) f(x) = 3 sin( pie/4 x) + 7
sind á x) + 7

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation:

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)