daniellestar2461 daniellestar2461

02-02-2018
Mathematics

contestada

1. The graph opens
a. upward
b. downward

2.The vertex of the graph is
a.(2,5)
b.(-2,-5)
c.(-2,5)

3.The axis of symmetry of the graph is
a.x=2
b.x=-2

1 The graph opens a upward b downward 2The vertex of the graph is a25 b25 c25 3The axis of symmetry of the graph is ax2 bx2 class=

Respuesta :

sqdancefan sqdancefan

06-02-2018

1. The coefficient of the squared term (-1/3) is negative, so the graph opens downward.

2. Matching the pattern to
.. y = a(x -h)^2 +k
we find (h, k) = (-2, 5) . . . . . . selection C

3. See the previous answer. The axis of symmetry is
.. x = h
Since h = -2, the axis is x = -2. . . . . . selection B

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