When we compare the function your teacher gave you to this template, then we see that
a = 1
h = 2
k = 2
The vertex is therefore (h,k) = (2,2)
The value of 'a' has no role in the vertex's location. This value determines how vertically stretched or compressed the parabola will be. Also, it determines if the parabola opens upward or downward (a > 0 for upward; a < 0 for downward).
Number one is 68 you have to divide on this download photomath its better because all you have to do is take a picture and it shows you how to do it ;)
