Which function has an axis of symmetry of x = −2?

f(x) = (x − 1)2 + 2
f(x) = (x + 1)2 − 2
f(x) = (x − 2)2 − 1
f(x) = (x + 2)2 − 1

Step-by-step explanation:

Suppose a function is given in this form y = (x-c)^2 where c is a constant.

We can say that x = c is the axis of symmetry

If the function was given in the form y = (x+c)^2 where c is a constant,

We can say that x = -c is the axis of symmetry.

So, from the answer choices, we see that:

f(x) = (x − 2)^2 − 1 will have axis of symmetry at x = 2, and

f(x) = (x + 2)2 − 1 will have axis of symmetry at x = -2

Thus the last option is right.

step-by-step explanation: it is d

they charge the same amount at 20 minutes.

step-by-step explanation: