3
It is: 16-20 = -4 which means that the given quadratic expression has no real roots.
480
If the discriminant is negative, there are 0 interceptsIf the discriminant is zero, there is 1 interceptIf the discriminant is positive, there are 2 intercepts
The discriminant is -7
3
It is: 16-20 = -4 which means that the given quadratic expression has no real roots.
480
Calculate 10^2 - 4*(-16)*(-20)
The discriminant tells you how many solutions there are to an equation The discriminant is b2-4ac For example, two solutions for a equation would mean the discriminant is positive. If it had 1 solution would mean the discriminant is zero If it had no solutions would mean that the discriminant is negative
With the standard notation, If b2 < 4ac then the discriminant is negative If b2 = 4ac then the discriminant is zero If b2 > 4ac then the discriminant is positive
If the discriminant is negative, there are 0 interceptsIf the discriminant is zero, there is 1 interceptIf the discriminant is positive, there are 2 intercepts
12
The discriminant is 88.
The discriminant is 0.
The discriminant is -7
The discriminant is 16