Question

Write a rational expression whose excluded values are 4 and -1

Answer 1

f(x) = 1/((x -4)(x +1))

Explanation:

Values are excluded from the domain of a rational function when those values are zeros of the denominator.

A rational function that requires x=4 and x=-1 be excluded from the domain might be ...

f(x) = 1/((x -4)(x +1))