Question 0113

Equations and Inequalities
2013 Paper 1 Question 2 Variant

Question

It is given that
y=x2+x+9x−4,x∈R,x≠4.y = \frac{ x^2 + x + 9 }{ x - 4 }, \quad x \in \mathbb{R}, x \neq 4.
Without using a calculator, find the set of values that y{y} cannot take.
[5]

Answer

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