A baker sells cupcakes and bases her prices on the number of cupcakes purchased. Graph of a piecewise function with one piece increasing from the point 0 comma 0 through the point 12 comma 18 to the endpoint 24 comma 36 and another piece going from the point 24 comma 36 through the point 48 comma 60 up to the right

Based on the graph, determine the pricing the baker uses for her sales.

The first 24 cupcakes cost $1.50 each, and all cupcakes after that cost $1.00 each.
The first 24 cupcakes cost $1.00 each, and all cupcakes after that cost $1.50 each.
The first 36 cupcakes cost $1.50 each, and all cupcakes after that cost $1.00 each.
The first 36 cupcakes cost $1.00 each, and all cupcakes after that cost $1.50 each.