The graph represents the total charges for a taxi that gets $6 to board and $1.25 per mile. What information is represented on the x - axis? Which domain values are significant to the function?

Responses
A boarding charge; x = 6boarding charge; x = 6
B charge per mile; x ≥ 1.25charge per mile; x ≥ 1.25
C distance the customer rides; x ≥ 0distance the customer rides; x ≥ 0
D distance the customer rides; all real numbers distance the customer rides; all real numbers

C distance the customer rides; x ≥ 0