Question

Let x represents the amount of a transaction and let f(x) represents the amount Isabel is charged for the transaction write a function that expresses f(x)

Answer 1

`f(x) = (Px)/(100)`

Explanation:

Let P% of the transaction amount is charged in the account.

So, if the transaction amount is x, then the charge for that transaction will be

`( Px )/( 100 )`.

Therefore, if f(x) represents the amount Isabel is charged for the transaction then we can write
`f(x) = ( Px )/( 100 )`, where P% is the rate of charge. ( Answer )