Kareem is using chickpeas, or garbanzo beans, to make two middle eastern dishes he will serve to guests. he needs 1 1/4 cups of chickpeas to make a dish called hummus. he also needs 2 cups chickpeas to make each batch of fried balls called falafel.

The function g represents the number of cups of chickpeas Kareem needs. What is the rate of change of the function g?