Y=( x + 3) 2 - 1 identify the vertex

Step-by-step explanation:

The vertex is of the form (h, k).  The general equation of a quadratic in vertex form is

where h is the x coordinate of the vertex and k is the y coordinate of the vertex.  The important thing to remember is that the "x -" part of the formula is constant, it doesn't change.  So if our expression inside the parenthesis is

(x + 3), it is understood to be (x - (-3)) which indicates movement to the left.  The "+ k" part is not taken literally.  If we have a + 2 at the end of our equation we are moving up 2; if we have a -1 at the end, we are moving down 1.  Our vertex then is located at (-3, -1)

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

send it over

step-by-step explanation: