Eric Nicholas K's answer to Rachel's Secondary 3 A Maths Singapore question.
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We need to form an equation in x and k or in y and k.
We then use the "two distinct roots" condition to formulate the discriminant equation b2 - 4ac > 0.
We will then need to solve inequalities in quadratic form.
Remember that multiplying or dividing an entire inequality by a negative number changes the inequality sign.
We then use the "two distinct roots" condition to formulate the discriminant equation b2 - 4ac > 0.
We will then need to solve inequalities in quadratic form.
Remember that multiplying or dividing an entire inequality by a negative number changes the inequality sign.
Date Posted:
5 years ago
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