Find an Equation of the Line $( 0,0 ) , \left( 7 , \frac { 7 } { 5 } \right)$

Multiple Choice

Find an equation of the line. Write the equation using function notation.
- $( 0,0 ) , \left( 7 , \frac { 7 } { 5 } \right)$

A) $f ( x ) = \frac { 1 } { 5 }$
B) $f ( x ) = 5 x$
C) $f ( x ) = \frac { 1 } { 5 } x$
D) $f ( x ) = 5$