Question

Use the quadratic equation y = x^2 – 6x + 9.



Where does the vertex of the parabola lie?

A.below the x-axis

B.on the x-axis

C.on the y-axis

D.above the x-axis

Calculate the discriminant to determine the number of real roots.
y = x^2 + 3x + 9

How many real roots does the equation have?

A.one real root

B.no real roots

C.two real roots

D.no solution to the equation

Answer 1

Part 1- B, on the X axis. 
Part B- A, the answer is one real root, and one non-real root.