8.(T) The points (-2, 7) and (4, 7) lie on the parabola defined by the equation y = 3x2 - 6x - 17. What are the coordinates of the vertex of the parabola? (2.5)

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8.(T) The points (-2, 7) and (4, 7) lie on the
parabola defined by the equation
y = 3x2 - 6x - 17. What are the coordinates of the
vertex of the parabola? (2.5)
a. (1,7)
b. (1, -20)
c. (-6, -17)
d. (1, -17)
Transcribed Image Text:8.(T) The points (-2, 7) and (4, 7) lie on the parabola defined by the equation y = 3x2 - 6x - 17. What are the coordinates of the vertex of the parabola? (2.5) a. (1,7) b. (1, -20) c. (-6, -17) d. (1, -17)
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