Question

s(t)=t^2 -2t+4 is the distance function. At which point does the direction of motion change?

Answer 1

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Answer 2

t=1 sec

Answer 3

from your eyeballs. vertex of this thing is
\[-\frac{b}{2a}=\frac{-2}{2}=1\] so don't let anyone tell you to take the derivative etc

Answer 4

actually it is
\[-\frac{b}{2a}=-\frac{-2}{2}=1\]