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
Galina-37 [17]
3 years ago
15

How to classify this conic ecwation 4x^2+9y^2-54y-63=0

Mathematics
1 answer:
MArishka [77]3 years ago
6 0
This looks like an ellipse.
Complete the square for y: 9(y²-6y-7)=9(y²-6y+9-9-7)=9((y-3)²-16).
Rewrite the equation:
4x²+9(y-3)²-144=0; 4x²/144+9(y-3)²/144=1; x²/36+(y-3)²/16=1.
Standard equation of an ellipse is (x-h)²/a²+(y-k)²/b²=1, where (h,k) is the origin or centre.
This is the equation of an ellipse with centre (0,3), a=6 and b=4 (semimajor and semiminor axes).
You might be interested in
QUICK I NEED HELP!!
natta225 [31]
7 (6) + 14!!! And this needs to be 20 characters long so I’m adding this
4 0
3 years ago
I have bots answering some of my questions so if you get the right answer ill give brainliest and you also get some points too :
KonstantinChe [14]

Answer:

ok what's your question

4 0
3 years ago
Which is a true statement about the diagram?
goldfiish [28.3K]
I don't know what the graft is
6 0
3 years ago
Read 2 more answers
Can't seem to figure out this problem. Can anyone help?
Juli2301 [7.4K]
 the third fifth and first

8 0
3 years ago
I need this done:'( please
NISA [10]
Hey! When you ask a question there is a math equation option. Use that to scan the problem and it will give you your answer.
3 0
2 years ago
Other questions:
  • The number of a particular fish in thousands x years after 1972 can be modeled by f(x)=230(0.886)x. Estimate the year when the n
    13·1 answer
  • Please answer ASAP<br> Solve: 4y – 8 – 2y + 5 = 0
    14·1 answer
  • Use a number line to find the absolute value of -3 and 3
    5·2 answers
  • Find the product. -8x5y2 · 6x2y
    10·1 answer
  • Mario spent $23.85 at the bookstore on one book and some magizines. The book cost $12.60 and the magizines cost $2.25 each. How
    8·1 answer
  • The Smith family hosted a barbeque party.
    11·1 answer
  • Write the number in scientific notation.<br><br> 8,670,000,000
    12·1 answer
  • 200 soldiers stand in a straight row.
    5·1 answer
  • Help plzzzzzzzzzzzzzz-
    6·1 answer
  • Find the indication of the right triangle
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!