AM-1631

Completing the square

A Math · Secondary 4 · Medium · Completing the square

A quadratic function is given by

h(t) = -5t^2 + 40t + 3

, where

h

is the height in metres and

t

is the time in seconds after a ball is thrown. Express

h(t)

in the form

a(t-b)^2 + c

, where

a, b

and

c

are constants.

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