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valina [46]
3 years ago
14

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

Mathematics
1 answer:
Serggg [28]3 years ago
6 0
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) 
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Step-by-step explanation:

They're saying that the larger number 3 times is EQUAL(the same) to 4 times the smaller number.

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Now, input it into an equation and solve:

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A table costs $50 more than a chair. The cost of 6 chairs and 1 table is $750. The equation 6x + x + 50 = 750, where x is the co
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The equation representing the cost of 6 chairs and a table is:

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⇒
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