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zhenek [66]
3 years ago
9

The graph of which function has an axis of symmetry at x = -1/4 ?

Mathematics
1 answer:
erastova [34]3 years ago
8 0
Where’s the graph?...
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Find the distance that the points is given on the graph ?
EleoNora [17]

From the graph, the given points are (2,-1) and (4,0). Use the distance between two points formula:

\large \boxed{ \sqrt{ {(x_2 - x_1)}^{2} +  {(y_2 - y_1)}^{2} } }

Substitute these points in the formula.

\large{ \sqrt{ {(2 - 4)}^{2}  +  {( - 1 - 0)}^{2} } } \\  \large{ \sqrt{ {( - 2)}^{2} +  {( - 1)}^{2}  } }  \\  \large{ \sqrt{4 + 1} \longrightarrow  \sqrt{5}  }

Hence, the distance is √5

Answer

  • √5

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3 years ago
If x^2 - 16 > 0, which of the following must be true?
zimovet [89]
The left hand side of the equation is a difference of two squares and may be factored out as follows,
                              (x - 4)(x + 4) > 0
They may be individually taken as,
                                     x - 4 > 0    ; x > 4
                                     x + 4 > 0   ; x < -4
Thus, the answer to this item is letter A. 
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Write an equation to represent the problem. Then solve the equation. Two years of local Internet service costs $685, including t
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Step-by-step explanation:

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What is one important thing you have to do before solving a word problem?
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read the answer through and collect all the information you can

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