The Discriminant
The discriminant 29/09/16
Introduce Q 10 2E
I will show you an example of using the quadratic formula page 171
complete investigation
Q 1. what do you notice about the discriminant on lines 1 2 3?
line 1. =0
line 2 >0
line 3 <0
watch video
https://www.khanacademy.org/math/algebra/quadratics/solving-quadratics-using-the-quadratic-formula/v/quadratic-formula-3
examples 8 and 9
examples together
1 c) f)
2 3 4 c)
Complete the rest independently