The function f (x) = 3x+12x+11 can be written in vertex form as?

Question

Karen Hanna

Mathematics

15 February, 23:13

The function f (x) = 3x+12x+11 can be written in vertex form as?

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Harper Ware · Answer 1

y = - 3 (x - 2) ^2 + 1 x - coordinate of vertex: x = - b / (2a) = - 12/-6 = 2 y-coordintae of vertex: y (2) = - 12 + 24 - 11 = 1 Vertex form: y = - 3 (x - 2) ^2 + 1 Check. Develop y to get back to standard form: y = - 3 (x^2 - 4x + 4) + 1 = - 3x ^2 + 12x - 11.