Rewrite the quadratic function ƒ(x) = x2 + 6x in standard form and identify the vertex of its graph. a. ƒ(x) = (x + 6)2 – 36; V: (–6, –36) b.ƒ(x) = (x + 6)2 + 36; V: (–6, 36) c.ƒ(x) = (x + 3)2 + 9, V: (–3, 9) d.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Rewrite the quadratic function ƒ(x) = x2 + 6x in standard form and identify the vertex of its graph.

a. ƒ(x) = (x + 6)2 – 36; V: (–6, –36) 

b.ƒ(x) = (x + 6)2 + 36; V: (–6, 36)

c.ƒ(x) = (x + 3)2 + 9, V: (–3, 9)

d.

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