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umka2103 [35]
3 years ago
14

Write the equation for a parabola with the focus at

Mathematics
2 answers:
katen-ka-za [31]3 years ago
5 0
The answer is (y - 4)2 = -12(x - 2)
Since the graph is facing the left, the starting equation would be (y - k)2 = -4p(x - h).
(h, k) is the vertex of the graph. If you plot the focus and the directrix, you can see that the distance is 6. Divide 6 by 2, thus the vertex should be 3 squares away from the focus and 3 squares away from the directrix. The vertex is (2, 4). And since the distance from the focus to the vertex and the distance from the directrix to the vertex is 3, P = 3.
Insert the numbers in and you should get the last choice.
Flura [38]3 years ago
3 0

Answer:

d

Step-by-step explanation:

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What makes this undefined.
nexus9112 [7]
<h3>Answer:</h3>

The expression is undefined when x=3 or -3

<h3>Solution:</h3>
  • An expression is undefined when it's divided by 0.
  • In order to make the denominator equal 0, we need to subtract 9-9.
  • Notice that x is squared.
  • So x times itself should equal 9. What number is it?
  • That's right, 3.
  • So we have
  • 9-(3)^2=9-9=0
  • There's also another solution: x=-3 (-3•(-3)=9

Hope it helps.

Do comment if you have any query.

7 0
2 years ago
Read 2 more answers
If the point (2,5) lies on the graph of y = f(x),then a point on the graph of y = f(x - 2) + 7 would be
andrew11 [14]

Answer:

(-5,5)

Step-by-step explanation:

3 0
3 years ago
What's the slope of a line that passes through (-4,-13) and (19.11)?
tester [92]

Answer:

m=24/23

Step-by-step explanation:

m=11+13/19+4

m=24/23

6 0
3 years ago
Andy has 9 math books and 6 reading books. If he wants to distribute them evenly among some bookshelves so that each has the sam
andrew11 [14]

Answer:

3 is the greatest number of book shelves Andy can use.

Step-by-step explanation:

You can solve this by finding the greatest common factor of 9 and 6, which turned out to be 3.

6/3 = 2 (reading books per shelf)

9/3 =3 (math books per shelf)

Every shelf there are 2 reading books and 3 math books.

4 0
3 years ago
True or false? <br><br> I believe it's false
seropon [69]

That is false. The parabola opens to the right.

3 0
4 years ago
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