1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nikklg [1K]
3 years ago
9

The focus of a parabola is located at (0,–2). The directrix of the parabola is represented by y = 2. Which equation represents t

he parabola? y2 = –2x x2 = –2y y2 = –8x x2 = –8y
Mathematics
1 answer:
Archy [21]3 years ago
3 0

Answer:

\boxed{x^2=-8y}

Step-by-step explanation:

(a,b)\ is \ the\ focus\\y=k\ is \ the\ directrice\\\\Formula\ to\ use:\ y=\dfrac{(x-a)^2}{2(b-k)} +\dfrac{b+k}{2} \\\\Here: \ a=0,\ b=-2, \ k=2\\\\y=\dfrac{(x-0)^2}{2(-2-2)} +\dfrac{-2+2}{2} \\\\so\ y=-\dfrac{x^2}{8} \\\\or\ x^2=-8y

You might be interested in
Put the following equation of a line into slope-intercept form, simplifying all
inessss [21]
In slope intercept form its, y=2x-2
8 0
2 years ago
What is the approximate length of RP? Round to the
suter [353]
6.1 units is the correct answer
5 0
3 years ago
In an Animal shelter, the ratio of dogs to cats is 5 to 3. There are 25 dogs, how many cats are there?
LekaFEV [45]

Answer: 25:15

Step-by-step explanation: in the ratio 5:3 the 5 is dogs and the 3 is cats you multiply the 5 (aka the dogs) by 5 to get 25 (the amount of dogs in the shelter) when you multiply 3 by 5 you get the amount of cats which is 15, a good way to remember is what you do to one side you have to do to the other. I hope this helps.

7 0
3 years ago
22)<br> Find x and y in each figure.
Maurinko [17]

Answer:

x= 10, y= 15

Step-by-step explanation:

because alternate interior angles are congruent

8x -10 = 7x

8x -7x = 10

x = 10

because straighht line form 180°

6y+20 +7x = 180

6y +20 +70 = 180

6y = 180 -90

y=90/6 = 30/2 = 15

4 0
3 years ago
What is a common denominator for 2, 4, 5, 3?
GrogVix [38]
The common denominator would be 1!
3 0
3 years ago
Read 2 more answers
Other questions:
  • Inset &lt; or &gt; to make a true statement.<br> -2.9 __ 3.8
    5·1 answer
  • Please help me out :( I appreciate it
    9·1 answer
  • What is the domain of the given function?
    11·2 answers
  • Harry's dog weighs 10 3/8 pounds. What is the weight of Harry's dog written as a decimal?
    7·1 answer
  • A sociology teacher asked his students to complete a survey at the beginning of the year. One survey question asked, "Do you hav
    9·1 answer
  • Find the value of x
    5·2 answers
  • Mhanifa could you please answer this last question for me. What is MXH in the circle below? A.Major arc, B.Minor Arc, C Semicirc
    8·1 answer
  • X + 7 = 33 inverse operation
    12·1 answer
  • Will mark as brainiest (Must show work)
    13·1 answer
  • Grandma Gertrude gave 13 pieces of jewelry and Grandma Fien gave yyy pieces of jewelry to the Carlson sisters to divide evenly a
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!