can you please help me with this

Algebra
Tutor: None Selected Time limit: 1 Day

which of the following equation shows a parabola in vertex form. A. Y = 2x^2 + 3x - 4 B. Y- 4 = 2 ( x^2 + 2) C. Y = -(x - 5)^2 - 3 D. Y = 2(x^2 + 1)-2
Feb 27th, 2015

C.  

Vertex form is y = a (x-h)^2 + k.  (C) is the only one in that form.

Feb 27th, 2015

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