Parametric Equations - Basics (AQA A-Level Mathematics): Quizzes

Functions of a third variable

$t$

Controls both $x$ and $y$

$\frac{\frac{dy}{dt}}{\frac{dx}{dt}}$

$\int y \frac{dx}{dt} dt$

Motion or difficult curves

A third, non-coordinate value

Written only in terms of $(x, y)$

Rearrange one equation to get $t = ...$

Substitute into the other equation