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Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more.
Generate lines of best fit and basic regression analysis for free online with Excel, CSV, or SQL data. Make bar charts, histograms, box plots, scatter plots, line graphs, dot plots, and more. Free to get started!
Linear regression is used to model the relationship between two variables and estimate the value of a response by using a line-of-best-fit. This calculator is built for simple linear regression, where only one predictor variable (X) and one response (Y) are used.
Trend lines are straight lines that connect two or more price points on a chart to identify and confirm trends. In technical analysis, trend lines are a fundamental tool that traders and analysts use to identify and anticipate the general pattern of price movement in a market.
Use this Linear Regression Calculator to find out the equation of the regression line along with the linear correlation coefficient. It also produces the scatter plot with the line of best fit.
How to create a scatter plot. Enter the title of the graph. For each series, enter data values with space delimiter, label, color and trendline type. For each axis, enter minimal axis value, maximal axis value and axis label. Press the Draw button to generate the scatter plot.
Interactive, free online graphing calculator from GeoGebra: graph functions, plot data, drag sliders, and much more!