A child wants to make money by selling lemonade at their own lemonade stand. The cost, in dollars, of all the ingredients they need is $18.75. They decide to charge 0.75 dollars for a cup of lemonade, hence, their profit in dollars for selling cups of lemonade is

a) What is the value of the -intercept of the graph of ? ( That is, we are looking for the input-intercept.)

b) Which of the following accurately describes the -intercept?