Quadratic Equations Flashcards
1
Q
Quadratic Formula
A
-b±root(b^2-4ac)/2a
2
Q
Sum of roots, product of roots and difference of roots
A
Sum = -Coefficient of x/Coefficient of x^2
Product= Constant Term/ Coefficient of x^2
Difference = root(Discriminant)/|Coefficient of x^2|
3
Q
If a quadratic equation has more than 2 roots, then it is called as an
A
Identity
It has infinite roots.
4
Q
What is the conditions for integral roots?
A
a=1, b and c belong to real number and discriminant is a perfect
5
Q
Vertex of the equation
A
-b/2a, -D/4a
6
Q
Range of quadratic when a>0
A
[-D/4a, ∞)
7
Q
Range of quadratic when a<0
A
(-∞, -D/4a]
