Completing the Square

Question 1

What are the roots?

Answer 1

The points that they cross the X-axis

Question 2

y= (x+4)^2 + 3 Vertex?

Answer 2

(-4,3)

Question 3

If the graph is U shaped, does the parabola have a maximum or minimum?

Answer 3

Minimum

Question 4

If the graph is n shaped, does the parabola have a maximum or a minimum?

Answer 4

Maximum

Question 5

Axis of symmetry?

Answer 5

Where a line of symmetry cuts the graph in half.

Question 6

Complete the square x^2 + 8x -9

Solve x^2 + 8x -9 = 0

Minimum point of x^2 + 8x -9

Answer 6

(x+4)^2 -25

x = 1 or -9

(-4,-25)