Question

The formula m = 12,000 + 12,000rt/12t

gives Keri's monthly loan payment, where r is the annual interest rate and t is the length of the loan, in years.
Explain why the formula is a rational function for a given value of r. What if you are given t?

Answer 1

Keri's monthly loan payment if she gets a 5% loan for 4 years is $300

Explanation:

Answer 2

It is of the form p(x)/q(x) where p(x) and q(x) are polynomials, and g(x) does not equal 0

If r is given, it does not change the fact that there is still a variable in the denominator.

If t is given, there is no longer a variable in the denominator. The function is still rational, but the case of t being a constant, it is also linear.

Explanation:

on edge 2021 its correct ^^