Hazleorqjacotto7n0 Hazleorqjacotto7n0

21-06-2016
Mathematics

Answered

What is f(x) = 7x2 + 42x written in vertex form?

Af(x) = 7(x + 6)2 – 6
Bf(x) = 7(x + 6)2 – 42
Cf(x) = 7(x + 3)2 – 9
Df(x) = 7(x + 3)2 – 63

Verified Answer :

HomertheGenius HomertheGenius

01-07-2016

f(x)= 7 x² + 42 x = 7 ( x² + 6 x ) = 7 ( ( x² + 6 x + 9 ) - 9 ) =
= 7 ( x + 3 )² - 63 (vertex form)
Answer: D)

Answer Link

NevaehHeavenBoss NevaehHeavenBoss

25-01-2021

Answer:

D.

Step-by-step explanation:

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