Question

pe jhjhhjgf

Answer 1

@imqwerty @sweetburger @zepdrix

Answer 2

@TheSmartOne

Answer 3

It's in the form

f(x) = (x - h)^2 + k

where (h, k) is the vertex

Answer 4

@TheSmartOne ?

Answer 5

correct :)

Answer 6

@TheSmartOne

Answer 7

correct :)

it would be written as x = -2