Linear Regression Slope Calculator (Two Points)

Calculate the slope and intercept of a line through two data points (simple linear regression with n=2).

Formula and method

This calculator uses the values you enter and applies the calculation immediately in your browser. The main output formulas are:

  • Slope (m): x2===x1 ? NaN : (y2-y1)/(x2-x1)
  • Intercept (b): x2===x1 ? NaN : y1-((y2-y1)/(x2-x1))*x1

Some formulas are undefined for certain input combinations, such as division by zero, equal x-values in a slope calculation, or logarithms of non-positive numbers. In those cases the live tool reports that the result is undefined instead of displaying Infinity or NaN.

Examples

  • Example: with x1 = 1, y1 = 2, x2 = 5, y2 = 10, this calculator returns Slope (m) = 2, Intercept (b) = 0.
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Frequently asked questions

Is Linear Regression Slope Calculator (Two Points) free to use?

Yes. Linear Regression Slope Calculator (Two Points) is completely free, has no usage limit, and does not require an account, email, or API key.

Does Linear Regression Slope Calculator (Two Points) store or upload my data?

No. Linear Regression Slope Calculator (Two Points) calculates everything locally in your browser. Nothing you type is sent to a server or stored by SpecWhale.

How accurate is Linear Regression Slope Calculator (Two Points)?

Linear Regression Slope Calculator (Two Points) uses a standard formula (see the Method section above for the exact expression). For high-stakes financial, medical, or legal decisions, confirm the result with a professional or an authoritative source before relying on it.

Can I embed Linear Regression Slope Calculator (Two Points) on my own website?

Yes. Use the "Embed this tool" snippet on this page to add a free, working copy of Linear Regression Slope Calculator (Two Points) to your own blog post or page.

SEO and sharing notes

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