# How to estimate the area under a curve

College algebra students learn How to estimate the area under a curve, and manipulate different types of functions.

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## 3 Ways to Find the Area Under a Curve (and why you would

Using the same logic, if we want to calculate the area under the curve x=g (y), y-axis between the lines y=c and y=d, it will be given by: A = ∫ c d x d y = ∫ c d g ( y)

## Approximating Area under a curve with rectangles

Select a blank cell, type the formula =SUM (D3:D16) to get the total area under the plotted area. Calculate area under a plotted curve with chart trendline This method will use the chart trendline to get an equation for the plotted curve, and