AM-1626

Completing the square

A Math · Secondary 4 · Medium · Completing the square

A projectile’s height above the ground is modeled by

h(t)=-5t^2+40t+15

, where

h

is in metres and

t

in seconds. Express

h(t)

in the form

a(t-b)^2+c

, where

a,b,c

are constants.

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