On the same day, Gabriella and Haley each bought one coin from a coin collector store. The equation f(x)=3x+4 represents the value of Gabriella’s coin, in dollars, x years later. The graph above shows

On the same day, Gabriella and Haley each bought one coin from a coin collector store.

The equation f(x)=3x+4 represents the value of Gabriella’s coin, in dollars, x years later.

The graph above shows the value of Haley’s coin, in dollars, x years later.