The intersecting chords theorem states that whenever two chords intersect, the product of their pieces is constant.
So, in this case, we have

Plugging your values, we have

This equation has solutions
, but we can't choose
, because it would lead to

So, the only feasible solutions is 
for an expression or relation to be a function, it must not have any x-coordinate values repeated, let's check this one

Answer:
Bro
Step-by-step explanation:
No
m=miles
cost for 1 mile ride= $2.20
c=cost
rule c=0.20m+2.00
c=0.20x1+2
c=0.20+2
c+2.20