The vertex of this parabola is at (-3,-2). Which of the following could be its equation?
(-3,-2)
O A. y=-2(x-3)2 + 2
O B. y=-2(x+3)2 + 2
O C. y=-2(x-3)2-2
O D. y=-2(x+3)2 - 2

D y= -2(x+3)2 - 2

Step-by-step explanation:

The vertex is (h,k )

h = -3

k= -2

These equations are in vertex form.

Vertex form: y= a(x-h)^2 + k

so,

y= a(x- (-3)) ^2 + (-2)

y= a (x+3) ^2  -2

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation: