Posted by **andhryn** on Sunday, January 2, 2011 at 6:55am.

in a rocket launching, the height h meter, the rocket reaches after t sec for the moment it was launched is given by h=xt-yt

the rocket altitude after 2 sec is 40 metres, and after 3 sec is 45 metres.

a. find x and y

b. altitude rocket after 5 sec

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