## Functions Modeling Change: A Preparation for Calculus, 5th Edition

amplitude = $1$ midline: $y=7$ period = $2\pi$
Equate this equation to the formula $$y=A\sin(B(t-h))+k$$ where $|A|$ is the amplitude, $2\pi/|B|$ is the period, and the midline is $y=k$. Using this form for the equation gives amplitude equal to $|1|=1$, period equal to $2\pi/1=2\pi$, and midline $y=7$.