$\text { Consider the function } f ( x ) = \frac { 20 } { \sqrt { x } } \text {, and its second-degree polynomial }$

Multiple Choice

$\text { Consider the function } f ( x ) = \frac { 20 } { \sqrt { x } } \text {, and its second-degree polynomial }$
$P _ { 2 } ( x ) = 20 - 10 ( x - 1 ) + \frac { 15 } { 2 } ( x - 1 ) ^ { 2 }$ at $x = 0.8$ . Compute the value of $f ( 0.8 )$ and $P _ { 2 } ( 0.8 )$ . Round your answer to four decimal places.

A) $f ( 0.8 ) \approx 22.3607 , P _ { 2 } ( 0.8 ) \approx 44.6000$
B) $f ( 0.8 ) \approx 22.3607 , P _ { 2 } ( 0.8 ) \approx 22.3000$
C) $f ( 0.8 ) \approx 45.7214 ; P _ { 2 } ( 0.8 ) \approx 45.6000$
D) $f ( 0.8 ) \approx 21.3607 , P _ { 2 } ( 0.8 ) \approx 21.3000$
E) $f ( 0.8 ) \approx 23.3607 , P _ { 2 } ( 0.8 ) \approx 22.3000$