The graph of a sinusoidal function intersects its midline at (0,-6) and then has a minimum point at (2.5,-9)(2.5,−9) Write the formula of the function, where x is entered in radians.

f(x)=

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?

Provide an equation