Question

The curve above is the graph of a sinusoidal function. It goes through the points (-9,-4) and (5,-4) Find a sinusoidal function that matches the given graph. I’d needed, you can enter pi=3.1416.... as pi in your answer, otherwise use at least 3 decimal digits.

Answer 1

Make a line and sence there are to negative 4’s then you cross them out and find how far is negative 9 to 5