La pendiente de la recta es: \frac{4-2}{1-1}=\frac{2}{0}=\infty
Por lo tanto, la recta es una recta vertical que pasa por (1,2) y (1,4)
Por lo tanto, la ecuación es x=1
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What is the limit of the rational expression (2x+3)/(4x^2+5x-2) as x approaches 2?
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