Use the Horizontal Line Test to Determine Whether the Following $f ( x ) = \frac { 3 } { 19 } x + 3$

True/False

Use the Horizontal Line Test to determine whether the following statement is true or false. The function $f ( x ) = \frac { 3 } { 19 } x + 3$ is one-to-one on its entire domain and therefore has an inverse function.