Respuesta :

Answer:

1. y = 2x² - 4

2. y = x² -2x

3. y = x² -2x + 1

Step-by-step explanation:

1. y = 2x² - 4 (not + 4 but it is not given?)

2. y = x² -2x

3. y = x² -2x + 1

Answer:

It is number 2

Step-by-step explanation: