please answer question one in its entirety. thanks

the question is clear

An enzyme catalyzes the reaction A --B. The initial rate of the reaction was measured as a function of the concentration of A. The following data were obtained: [A], micromolar Vo, nmoles/min 0.05 0.08 0.1 0.16 0.5 0.79 1 1.6 5 7.3 10 50 100 500 1,000 5,000 10,000 20,000 13 40 53 73 76 79 80 80 a) What is the km of the enzyme for the substrate A? b) What is the value of Vo when [A] = 43? The above data were plotted as 1/ Vo versus 1/[A], and a straight line was obtained. c) What is the value of the y-intercept of the line? What is the value of the x-intercept of the line? car MITASMLC1 (Mar)