Question

What is the vertex of the graph of y=3(x-1)2+2
A) (1,-2)
B) (1,2)
C) (-1,2)
D) (3,2)

Answer 1

Answer:

  B)  (1,2)

Step-by-step explanation:

In the vertex form ...

  y = a(x-h)^2 +k

the vertex is (h, k).

Matching the form to the given equation, we see h=1, k=2. So, the vertex is ...

  (1, 2) . . . . matches choice B