QUADRATIC FORMULA WORD PROBLEMS

Cost functions often form parabolas that open up . The larger a business becomes , the more expenses it has (materials , staff , facilities , etc. ). Jack started a business making and selling fashionable hats . Below is the graph of his cost function c(x) =; 0.005x ^ 2 + 3x + 1500 , where c(x) is the cost of producing x number of hats . Use the function and its graph to A answer the questions below . Interpret the meaning of the ordered pair (1000, 9500). how much did it cost him to start this business. does the vertex have any significance?

i need question 1,3,4