How do i determine the domain of a graph

To determine the domain of a graph, solve the inequality 4 - x > 0. x < 4. Thus, all numbers less than or equal to 4 represent the domain for this function. When trying to find the domain and range from a graph, the domain is found by looking at the graph from left to right.

The answer will be B 179.17 cuz she will have a lot of money by the time 2 years will be up to pay 24 equal payments