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Semmy [17]
3 years ago
9

Vertex and axis of symmetry f(x)=2x^2-16x-17 PLEASE HELP

Mathematics
1 answer:
Law Incorporation [45]3 years ago
8 0
The vertex is at (4, -49) and the axis of symmetry is at x= 4.

To find the vertex of this equation, use this method: ( \frac{-b}{2a})

a=2
b=-16

This will help get your x value and the axis of symmetry. To find the y value of the vertex, insert the x value, 4 to get your y value, -49.
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Find each product or quotient. give all answers in simplest form. -8/12 x -2/13
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Answer:

0.1025641026

Step-by-step explanation:

-8/12×-2/13

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A firefighter determines that 350 feet of hose is needed to reach a particular building. If the hoses are 60 feet in length, wha
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Answer:

  6 lengths

Step-by-step explanation:

You essentially want the smallest integer solution to ...

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The smallest integer solution to this is x = 6.

The minimum number of lengths of hose needed is 6.

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Informally, you know that dividing the required total length by the length of one hose will tell you the number of required hoses. You also know the ratio 350/60 is equivalent to 35/6 and that this will be between 5 and 6. (5·6 = 30; 6·6 = 36) The next higher integer value will be 6.

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If f(x)=log2(x+4), what is f^-1(3)?
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