which of the following is a rational function?
a.2+x/x-1 = 8
b.x > √x+2
c.f(x) = x²+2x+3/x+1
d.2x ≥ 7/x+4
a.2+x/x-1 = 8
b.x > √x+2
c.f(x) = x²+2x+3/x+1
d.2x ≥ 7/x+4
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Answer:
letter D. 2×≥7/×+4
Explanation:
because, The function is a rational function since the numerator, x^2 + 4x - 1, is a polynomial and the denominator, 3x^2 - 9x + 2 is also a polynomial.
Example
R(x) = (x^2 + 4x - 1) / (3x^2 - 9x + 2).