Vault Of Euclid

Equation of an Ellipse from Foci and Eccentricity

Parametric equations and vector functions warmup

Find the equation of the conic section with foci located at \( (2, 0) \) and \( (-2, 0) \) and an eccentricity of \( \frac{1}{2} \).
analytic-geometryconic-sectionsellipseeccentricityfocistandard-equationsemi-major-axissemi-minor-axisfind-equationalgebraprecalculusgeometry

The solution and a full step-by-step explanation are here. Sign in to read them.

What you need first

What this problem tests

Tests the ability to identify a conic section from its eccentricity and to use the relationships between a, b, c, and e to construct its standard equation.

This is a standard exercise in precalculus and analytic geometry, often used to introduce the algebraic properties of conic sections.

More on Parametric equations and vector functions