1. 4.7 Complete the Square
Writing Equations in Vertex Form
Leading Coefficients

2. Write Equations in Vertex Form
• Use Complete the Square method
to
2
y ax bx c  
 
2
y a x h k  

3. Write in Vertex Form
2
4 9y x x  
2
9 4y x x  
2
49 44y x x  
 
2
5 2y x  
 
2
2 5y x  
 2, 5

4. Write in Vertex Form
2
5 7y x x  
2
7 5y x x  
225 5
7 5
2
4 4
y x x 
2
2
b 
 
 
2
5
2
 
  
 
25
4

2
28 5
4 2
25
4
y x
 
   
 

2
53 5
4 2
y x
 
   
 
2
5 53
2 4
y x
 
   
 
5 53
,
2 4
 
  
 

5. Write in Vertex Form
2
3 12 14y x x  
2
14 3 12y x x  
 2
14 3 4y x x  
   2
14 3 43 4 4y x x  
 
2
26 3 2y x  
 
2
3 2 26y x    2, 26 

6. Write in Vertex Form
2
10 2y x x  
 
2
5 23y x  
 5, 23

7. Assignment
p. 289 #39, 41 - 49, 62-63, 67, 69