Graphs :

Question 1

How can you work out the max/ min point of a quadratic ?

Answer 1

• completing the square

Question 2

What happen to the graph if y = |f(x)| ?

Answer 2

The part below the x axis is reflected in to the positive y quadrant.

Question 3

What happen to the graph if y = f(|x| )

Answer 3

The section of the graph to the right of the y axis would be reflected along the y axis