Quadratic equations (also called second degree equations) contain three numbers called **parameters**:

**Parameter****$a$**represents the position of the**vertex**of the parabola on the $Y$ axis. A parabola can have a maximum vertex, or a minimum vertex (depending on if the parabola opens upwards or downwards).**Parameter****$b$**represents the position of the**vertex**of the parabola on the $X$ axis.**Parameter****$c$**represents the**point of intersection**of the parabola with the $Y$ axis.

These three parameters are expressed in quadratic equations as follows:

$aX^2+bX+c=0$

They are called **the coefficients** of the equation.

So, how do we find the value of $X$?

To find $X$ and be able to solve the quadratic equation, all we need to do is to input the parameters (the number values of a, b and c) from the equation into the **quadratic formula**, and solve for $X$.

**For example:**

$3X^2+8X+4=0$