1) Graph Basics a) The general form of quadratic equation is

1) Graph Basics
a)
The general form of quadratic equation is given by,
y ( x )=a x2+ bx+ c
Where a,b,c are constants and x and y are variables.
b)
The line of symmetry of this parabola is y axis.
c)

The vertex of this parabola is (0,0)
d)
the constant c determines how vertical distance the parabola moves.
That is the distance that the vertex moves with respect to the y axis of the graph.
2)
a) Befrore solving a quadratic equation, you must make it equal to zero.
b)To solve a quadratic equation usinga graph find the intercepts.
c)
given,
y= 2 x2 + 4 x−3
here a=2, b=4, c=-3
d)
=2 x2 + 4 x−3=0
= x=−b ± √ b2−4 ac
2 a
= x=−4 ± √ 16+24
4