sketch the graph of each of the following function
* state the vertex and line of symmetry
a. Y = x^2 +2
b. Y = ( x + 1 )^2
c. Y = -( x - 4 )^2
* state the vertex and line of symmetry
a. Y = x^2 +2
b. Y = ( x + 1 )^2
c. Y = -( x - 4 )^2