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.
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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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