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

B) (1,2)

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