## Calculus 10th Edition

a) Absolute maximum: $4$ and absolute minimum: $1$. b) Absolute maximum: $4$ and no absolute minimum. c)No absolute maximum and absolute minimum: $1$. d) No absolute maximum and no absolute minimum.
$f'(x)=-1\to f'(x)$ is never equal to $0$ and therefore the absolute extrema should occur at the interval's endpoints. $f(1)=4; f(4)=1.$ a) Absolute maximum: $4$ and absolute minimum: $1$. b) Absolute maximum: $4$ and no absolute minimum. c)No absolute maximum and absolute minimum: $1$. d) No absolute maximum and no absolute minimum.