Rewrite each function into vertex form, f(x) = a (x – h)

2 + k . Show your solution.

1. f(x) = x

2 + 2x − 1

2. f(x) = 2x

2 − 10x + 4

3. f(x) = 3x

2 + 12x +
23
2

4. f(x) = −2x

2 + 12x − 17

5. f(x) = 4x

2 − 4x + 13