Question

A taxi service charges an initial fee of $2.15 then charges $1.68 a mile. Write a linear equation to model this situation.

Answer 1

Let y represent the total amount charged by the taxi service.

Total charge = fixed charge + variable charge

Given initial fee( fixed charge) =   2.15

Let the taxi travels x miles

Since the rate is $1.68 per mile so if the taxi travels x miles ,then  

the amount incurred =  1.68x

y= 1.68x + 2.15

Hence option A is the correct answer.

Answer 2

Initial charge = $2.15

Let  'x' represent the number of miles taxi service charges and the total charges be 'y'.

Charges per mile = $1.68

So charges for x miles = $1.68x$

Total charges = Charges in x miles + initial charges

y = $1.68x$ + 2.15

So the answer is option A