Question

Select the correct answer from each drop-down menu. The spending limit on John's credit card is given by the function ________, where x is his monthly income. The variable x represents ________ in the inverse function. If John's spending limit is $60,000, his monthly income is ________.

1) f(x) = 60000x, y
2) f(x) = 60000/x, y
3) f(x) = 60000x, x
4) f(x) = 60000/x, x

Answer 1

The spending limit function for John's credit card is f(x) = 60000/x. 'x' represents the spending limit in the inverse function, and if the spending limit is $60,000, John's monthly income is $1.

Step-by-step explanation:

The spending limit on John's credit card is given by the function f(x) = 60000/x, where x is his monthly income. In this context, the variable x represents spending limit in the inverse function. If John's spending limit is $60,000, to find his monthly income, we need to solve the equation f(x) = 60000/x = 60,000. This implies that x = 1. So, John's monthly income is $1.