What is a Line Chart ?

by Mcs July 1, 2025

A Line Chart is a type of graph that displays information as a series of data points connected by straight lines. It is commonly used to show trends over time.

Key Features:

X-axis: Usually shows time (days, months, years, etc.)
Y-axis: Shows the value (temperature, sales, etc.)
Points connected: Each point represents a value at a specific time

Example Use Cases:

Temperature changes during the day
Stock price movements
Website traffic over weeks
Monthly sales growth

Line Chart Example using Chart.js:

const myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ['Jan', 'Feb', 'Mar', 'Apr', 'May'],
datasets: [{
label: 'Sales',
data: [150, 200, 180, 220, 300],
borderColor: 'blue',
fill: false,
tension: 0.3
}]
},
options: {
responsive: true,
scales: {
y: {
beginAtZero: true
}
}
}
});
</script>