Which of the quadratic functions listed is written in vertex form?
Accepted Solution
A:
Answer:A is the best answer.Step-by-step explanation:A is. It can be written as y [ or v] = -2(x + 3)^2 + 7 which is the pure form of a vertex equation. C doesn't work since that is a linear function. Nothing is squared.D doesn't work. That is just the way an ordinary quadratic is written. (Standard form).B doesn't work. The quadratic is written in factored form.