The equation* y = *2(*x + *3)*^*2* - *4 graphs a parabola in the *xy*-plane? Which of the following is the vertex of the parabola?

A) (-3, -4)

B) (3, -4)

C) (6, -4)

D) (6, 4)

**Maps to Category 31 of the book.**

There is a flashcard for this concept. It is accessible from the Resources page.

**Answer posted on 09/12/2021. Correct answer choice is A.**

*y = *2(*x + *3)*^*2* - *4 is the vertex form equation of a parabola. From the vertex form equation, the *x and y*

coordinates of the vertex can be directly read.

In the given equation, the* x-*coordinate of the vertex is -3 and the *y*-coordinate of the vertex is 4. This is answer choice A.

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