Use Function Notation to Write the Equation of the Line $- \frac { 2 } { 3 } ; y$

Multiple Choice

Use function notation to write the equation of the line with the given slope and y-intercept.
-Slope $- \frac { 2 } { 3 } ; y$ -intercept $( 0,0 )$

A) $f ( x ) = \frac { 2 } { 3 }$
B) $f ( x ) = - \frac { 2 } { 3 }$
C) $f ( x ) = \frac { 2 } { 3 } x$
D) $f ( x ) = - \frac { 2 } { 3 } x$