Prepare a document to explain your answers and graph your solutions. Make sure to use references in APA format to support your positions.

Joshua's income increases, while federal taxes increase; therefore, please illustrate by constructing a supply and demand graph, the direction in which the curves will shift and state the new equilibrium price and quantity; for example, state whether price and quantity increased, decreased, or are indeterminate. Please explain your rationale based on the determinants of demand and supply.