Diane walks 5 , 000 steps each day for exercise. Over the next year, her goal is to increase the number of steps she walks each day by 10 . Let f ( x ) represent the number of steps Diane plans to walk on day x since beginning her goal. What does f ( 100 ) = 6 , 000 represent? Select from the drop-down menus to correctly complete the sentence. Diane plans to walk steps on day since beginning her goal.