The height of a helicopter above sea level minutes after taking off is metres.
MATHEMATICS · Multi-part · CBSE · Mathematics · Linear Equations in Two Variables · Linear Equations in Two Variables
Problem
The height of a helicopter above sea level t minutes after taking off is H=150+120t metres.
(1) What height above sea level did the helicopter take off from?
(2) Interpret the value 120 in the equation.
(3) Find the height of the helicopter above sea level after 2 minutes.
(4) How long will it take for the helicopter to be 650 m above sea level?