Which statement best describes the excluded values of a rational expression?

a. the number of excluded values of a rational expression cannot exceed the degree of the numerator.
b. the number of excluded values of a rational expression cannot exceed the degree of the denominator.
c. the number of excluded values of a rational expression cannot exceed the sum of the degrees of the numerator and denominator.
d. the number of excluded values of a rational expression cannot exceed the difference in the degrees of the numerator and denominator.

b. The number of excluded values of a rational expression cannot exceed the degree of the denominator.

Step-by-step explanation:

A rational expression is a fraction in which the numerator and the denominator are polynomials. The excluded values of a rational number are that values which make denominator zero.They are basically the zeroes of the polynomial of denominator.So,the number of excluded values can't exceed the degree of the denominator.

Here is  a rational expression  

where the denominator is

⇒x=-2,+2 are zero of polynomial

i.e. -2 and 2 are the excluded values for the whole rational expression.

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step-by-step explanation:

just copy and paste it.

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f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)