
Conic sections
Properties of ellipses worksheets
Find exact centers, vertices, co-vertices, foci, axis lengths and eccentricity from standard-form ellipse equations.
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Graph standard-form ellipses on equal-scale coordinate grids using exact centers and axial extrema.
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Graph each ellipse on the equal-scale coordinate grid.
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Each worksheet contains four standard equations and four coordinate grids from −10 to 10.
Plot the center and four axial extrema, then draw one smooth closed ellipse through those points.
The separate key shows the full ellipse, center and axial points.
Learning objective
Connect standard ellipse equations with centers, semiaxes and complete coordinate graphs.
Worked example
Center (2, −1), horizontal radius 4 and vertical radius 2.
Plot the center and the four axial extrema, then draw the closed ellipse through them.
Teaching notes
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Change the seed for four reproducible equal-scale ellipse graphs.
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Conic sections
Find exact centers, vertices, co-vertices, foci, axis lengths and eccentricity from standard-form ellipse equations.
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Conic sections
Construct exact standard-form ellipse equations from vertices, co-vertices, foci, centers and horizontal widths.
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Conic sections
Read a circle in standard form, find its center and radius, and graph the complete circle on an equal-scale coordinate grid.
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