The first Weather Bureau Office to open in Arizona was in Yuma where the duties were transferred from the Army at Fort Yuma in July 1891. Tucson followed in September of that year, and it was not until four years later that the small community of Phoenix rated a full station.
Different types of graphs depend on the type of function that is graphed. The eight most commonly used graphs are linear, power, quadratic, polynomial, rational, exponential, logarithmic, and sinusoidal. Each has a unique graph that is easy to visually differentiate from the rest.
When you graph any exponential function though, they will all have the same general look, based off of the basic exponential function graph. Depending on the change, or transformation, the graph can be shifted up or down, left or right, or even reversed. Keep watching, and we will identify what causes these changes.