График 3:new Chart('graphCanvas3', {type: 'line', data: {labels: [-4, -2, 0, 2, 4], datasets: [{label: 'y = -8/x', data: [2, 4, 'NaN', -4, -2], borderColor: 'green', fill: false}]}, options: {scales: {x: {display: true, title: {display: true, text: 'x'}}, y: {display: true, title: {display: true, text: 'y'}}}, tension: 0.4}});