The graph of a sinusoidal function has a minimum point at (0-10) and then has a maximum point at (2,-4). Write the formula of the function, where x is entered in radians.

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?

How do you determine if an ordered pair is a solution to a given equation?

Having a hard time understanding this question (see attachment).