$\"\"$

The point on the function $\"\"$ is $\"\"$ and $\"\"$ .

(a).

Find the value of $\"\"$ :

$\"\"$

Use differentials and the given graph to to approximate the value of $\"\"$ .

$\"\"$

$\"\"$ .

$\"\"$

(b).

Find the value of $\"\"$ :

$\"\"$

Use differentials and the given graph to to approximate the value of $\"\"$ .

$\"\"$

$\"\"$ .

$\"\"$

(a) The value of $\"\"$ is $\"\"$ .

(b) The value of $\"\"$ is $\"\"$ .