Problem 75 of 7
Choose sine or cosine model for periodic context tide starts at minimum height.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
match starting condition and phase.
Hidden until you reveal it.
Match starting condition and phase for tides, temperature, Ferris wheel, sound, and similar contexts.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify initial value relative to midline, maximum, or minimum.
2. Determine whether the graph initially rises or falls.
3. Choose sine for midline starts and cosine for extrema starts when convenient.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Choosing by preference when starting condition specifies phase.