Question 629666
Mario paid $44.25 in taxi fare from the hotel to the airport. The cab charged $2.25 for the first mile plus $3.50 for each additional mile. How many miles was it from the hotel to the airport?
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you can use the standard form of equation of a straight line to solve this problem:
y=mx+b, m=slope, b=y-intercept
For given problem:
let x=distance from hotel to airport
slope=$3.50/mi
y-intercept=$2.25
y=44.25
..
44.25=3.5x+2.25
3.5x=44.25-2.25=42
x=42/3.5=12
distance from hotel to airport=12 miles