Question

What is the vertex of the graph of y = –4(x + 2)2 + 5?
(2, 5)

(–2, 5)

(5, –2)

(5, 2)

Answer 1

5, 2

Answer 2

when a graph is in this special form (it is a parabola), the x value of the vertex is where (x-2) is zero. That is x= 2. And when (x-2) is zero, y= 0+5= 5, so the y value is 5
(2,5) is the vertex.