Question

The graph of which equation has a vertex of (1, –3)?

y = 1(x – 3)2 + 1

y = 2(x – 3)2 + 1

y = 2(x – 1)2 – 3

y = 2(x + 1)2 – 3

Answer 1

\[y=a(x-h)^2+k\]

Answer 2

(h,k) is the vertex. So match your equations up to that form. Whichever one has an h value of 1 and a k value of -3 is the one you should choose.