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www.automateexcel.com/functions/slope-formula-excel

The SLOPE function in Excel is used to calculate the slope of a line given known x and y values. The SLOPE function can be used in conjunction with the INTERCEPT function to find the equation of a linear line,

www.excelfunctions.net/excel-linest-function.html

The Excel Linest Function uses the least squares method to calculate the line of best fit through a supplied set of y- and x- values. If there is a single range of x-values, the calculated line satisfies the simple straight line equation:

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Given a function, you can easily find the slope of a tangent line using Microsoft Excel to do the dirty work. That is to say, you can input your x-value, create a couple of formulas, and have Excel calculate the secant value of the tangent slope. This is a fantastic tool for Stewart Calculus sections 2.1 and 2.2.

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Excel equation of a straight line find the trendline in how to make fit using 8 steps with pictures calculate slope 9 basics linear regression finding y intercept 4 ways and intercepts wikihow least squares. Excel Equation Of A Straight Line. Find The Equation Of A Trendline In Excel.

I want to take the equation of a line of best fit from a graph and use it in a calculation. How do I do this? I have seen it done. Imagine I have a linear relationship, e.g. the race times of an athlete against their distances. I get an equation for this graph using Excel.

www.excelfunctions.net/excel-trend-function.html

Equation for a Straight Line. The Excel Trend Function finds the linear trend by using the least squares method to calculate the line of best fit for a supplied set of y- and x- values. If there is a single range of x-values, the calculated line satisfies the simple straight line equation:

Take the log of the above equation to get ln =ln(c)+b*ln(x). This is a linear equation! So, LINEST will give you ln(c) as the intercept and b as the slope. Suppose your x and y values are in columns A and B. Then, in C and D, calculate LN() of the cells in columns A and B respectively.