Parametric Equations 2
View the Lesson | MATHguide homepage Updated April 24th, 2019


Status: Waiting for your answers.

Problem:Using factoring, determine how long an object stays in the air if its height is defined by these parametric equations.

x(t) = 4t
y(t) = -16t2 + 1024

 
Work:
-16t2 + 1024 = 0
-16(t2 - ) = 0
-16(t - )(t + ) = 0
t - = 0   OR   t + = 0
t =   OR   t =
Solution:This object will stay in the air for seconds.