Parameters Summary

Parametric Equations

Summary

some relations are better written in terms of a third variable instead of just x and y.

these equations are called parametric equations and t is often used as the third variable.

parametric equations are useful when dealing with the conic sections and other relations in geometry.

Key Skills

differentiate a relation expressed in parametric form.

Vocabulary

parametric equation, parameter, conic section, variable, chain rule, relation.