The value of a function is the actual calculation done at a certain point. The limit is - roughly speaking - the value at points that are “arbitrarily close” to the same point. For most commonly used functions, the value of a function at a point, and the limit at the same point, is the same - at least for most values.
Cost of Taxi A = $ 0.20*X + $4 With "X" equal to "miles traveled". For taxi B we have: Cost of Taxi B = $ 0.40*X + $2 Then, when Cost of Taxi B > Cost of Taxi A,
We Have: $ 0.40*X + $2 > $ 0.20*X + $4
That is the inequality that you need! Good luck! M.
