Write each function in vertex form, then find the coordinates of the vertex.

The notation means the output of function when is 2. For each function, decide whether , , or .

4.  

   

   Graph on coordinate plane. Horizontal axis, by twos from negative 4 to 8. Vertical axis, by twos from negative 4 to 8. Graph goes through origin and increases vertically on both sides of y axis.

5.  

   

   Graph of line on coordinate plane. Horizontal axis by twos from negative 4 to 8. Vertical axis by twos from negative 4 to 8. Graph goes through points 2 comma 0 and 6 comma 0.

6.  

   

7.