
Calculus
Horizontal Tangents on Graphs worksheets
Plot or inspect polynomial, rational, and trigonometric functions and identify every horizontal tangent coordinate in the displayed interval.
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Analyze exact intercepts, critical points, inflection points, behavior intervals, concavity, and relative extrema before sketching a function.
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Find the selected properties, then sketch the function on the displayed grid.
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Customize this worksheetAligned axes, explicit windows, and separate rational branches make slope and shape claims visible rather than implied.
Learning objective
Connect derivative sign information and exact feature coordinates to a complete graph on a stated window.
Worked example
Intercepts (-2,0), (2,0), and (0,-4); minimum (0,-4); decreasing then increasing; concave up.
The roots and y-intercept locate the curve, while f'(x)=2x and f''(x)=2 determine its turn and concavity.
Teaching notes
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Choose a nonempty set of function families. Every graph uses a stated window and keeps discontinuous branches separate.
A useful next step

Calculus
Plot or inspect polynomial, rational, and trigonometric functions and identify every horizontal tangent coordinate in the displayed interval.
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Calculus
Sketch derivative graphs from aligned polynomial, rational, and trigonometric function graphs, with an optional explicit equation.
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