6. Superman leaps off the side of the Scarborough Bluffs to save his love Louis Lane. Superman's height above the water can be modeled by the expression \( h = ( t - 6 ) ^ { 2 } - 4 \) ; where \( h \) is height above the water in \( m \) and \( t \) is the time in seconds.
Pregunta
Answer
t=8 \ or \ t=4
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