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Find absent output levels from a quadratic discriminant

C:y=(−9x2+6x−1)/(x−1)C:y=(-9x^2+6x-1)/(x-1).

(i) Without a calculator, find the range of y for which no points lie on C. marks

(ii) Sketch C with turning points, axial intercepts and asymptotes. marks

[2013/SRJC/MidYear/9(a)(modified)]

CJC · Review problems · Question 3

The two stationary output levels are the boundaries of the absent interval.

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