Question

A taxi company charges a fee of $4 plus $0.50 per kilometer. Write a formula for $C, the cost of d journey.

Answer 1

C = 4 + 0.5d

Explanation:

General equation: y = ax + b, with b is fixed term and a is rate per x.

Here,

C = y

fixed term b = 4

rate a = 0.5 per kilometer (d)