Tan Yan Pei's answer to Gerald Zhi Wei's Secondary 3 A Maths question.
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Tangent:Discriminant=0
Cuts at 2 distinct points: Discriminant>0
Does not cut the curve: Discriminant<0
Discriminant is derived from the formula to find roots of a quadratic equation.If you don't understand,write out the formula and you'll know why.
Tangent:Discriminant=0
Cuts at 2 distinct points: Discriminant>0
Does not cut the curve: Discriminant<0
Discriminant is derived from the formula to find roots of a quadratic equation.If you don't understand,write out the formula and you'll know why.
Date Posted:
7 years ago
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