Solve the Problem $f ( x , y , z ) = 2 x - 4 y + 10 z$

Multiple Choice

Solve the problem.
-About how much will $f ( x , y , z ) = 2 x - 4 y + 10 z$ change if the point $( x , y , z )$ moves from $( 10 , - 7,10 )$ a distance of $\mathrm { ds } = \frac { 1 } { 10 }$ unit in the direction $2 \mathbf { i } - 3 \mathbf { j } + 6 \mathbf { k }$ ?

A) $\frac { 36 } { 35 }$
B) $\frac { 38 } { 35 }$
C) $\frac { 8 } { 7 }$
D) $\frac { 6 } { 5 }$