Question

What is the axis of symmetry for the function f(x)=7−4x+x2?

x = –3
x = –2
x = 2
x = 3

Answer 1

Answer:

x = 2

Step-by-step explanation:

$y = {x}^{2} - 4x + 7 \\ y = (x - 2) {}^{2} - 4 + 7 \\ y = {(x - 2)}^{2} + 3$

Therefore, axis of symmetry is x = 2

Answer 2

Answer:

x=2

Step-by-step explanation: