CH2

Question 1

Depending upon the answer to the discriminant from a quadratic what does it mean in term of the number of roots?

Answer 1

If b^2-4ac>0 then there are two distinct roots of the quadratic
If b^2-4ac=0 then there is only one root to quadratic
If b^2-4ac

Question 2

In a quadratic equation, depending upon the value of “a” then how is the shape of the graph determined?

Answer 2

a>0 then it’s a U shape

a

Question 3

If Y=Ax^2 + Bx then complete the square

Answer 3

Y = (X+b/2)^2 - (b/2)

Question 4

What is the discriminant?

Answer 4

b^2-4ac