Predict the change in the graph from f(x) to g(x). Then graph both lines to check your prediction.
1. f(x) = x;9(x) = x + 5
2. f(x)=-3x + 1; g(x) - 3x + 1

At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.