### Image: Shaded area under a curve

The area underneath a curve, i.e., the graph of a function, and above an interval on the x-axis is illustrated as a shaded region. The function is $f(x)=\frac{x^4}{20} -(x-2)^3+3x$ and the interval is $[-1, 10]$.

Image file: area_under_curve_shaded.png

Source image file: area_under_curve_shaded.ggb

Source image type: Geogebra

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