The total cost of the cab ride was $25.50. The cabbie charges $1.50 per mile the entire trip.
I'm pretty sure that it is 140. Hope I helped!
For this case we have that by definition, the point-slope equation of a line is given by:

Where:
m: It's the slope
It is a point through which the line passes
According to the statement data we have:

Substituting we have:

By law of signs of multiplication we have to:

Answer:
The requested equation is: 