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3853660
Quadratic Eq. & Ex.
Description
Mind Map on Quadratic Eq. & Ex., created by Ee Lyn Lim on 22/10/2015.
Mind Map by
Ee Lyn Lim
, updated more than 1 year ago
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Created by
Ee Lyn Lim
almost 9 years ago
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Resource summary
Quadratic Eq. & Ex.
Equation: ax^2+bx+c =y
Expression= ax^2+bx+c
Function=f(x)=ax^2+bx+c
Finding roots or range of Equation/Expression
Completing Square
divide the coefficient of x by 2
square the whole thing eg. (2/2)=1 so, (x+1)^2
subtract the number you gt and put in c from the original equation
Cross-Multiplication
Factorization
General Formulae
x>0= 2 distinct roots. so, curve touches two points on x-axis
x=0, equal roots. so, curve touches only one point on the x-axis
x<0, no real roots. so, curve will not touch the x-axis
Quadratic Inequalities
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