1) https://chart.apis.google.com/chart?...%7Cf(x)%7C%2Bc 2) https://chart.apis.google.com/chart?...ght)%7D%20%2Bc 3) https://chart.apis.google.com/chart?...Blna%7D%20%2Bc 4) https://chart.apis.google.com/chart?...ln%7Cax%2Bb%7C