2.
Which equation is represented by the graph?



A. y = 2x2 − 4x + 1

B. y = -1/2x^2 - 2x - 1

C. y = 1/2x^2 + 2x + 1

D. y = −2x2 + 4x + 1

2 Which equation is represented by the graph A y 2x2 4x 1 B y 12x2 2x 1 C y 12x2 2x 1 D y 2x2 4x 1 class=

Respuesta :

Answer:

B. y = -1/2x^2 - 2x - 1

Step-by-step explanation:

If you look at the graph very carefully you will be able to tell the answer is Letter B.

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Down

Vertex:  ( − 2 ,  1 )

Focus:  ( − 2 ,  1 /2 )

Axis of Symmetry:  x = − 2

Directrix:  y = 3 /2

x                y

− 4             − 1

− 3              1

2               − 2

1                 − 1

1                  2

0                 − 1

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