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Lady bird [3.3K]
3 years ago
14

What type of conic section is given by the equation 4x^2+9y^2=36? What are its domain and range?

Mathematics
2 answers:
tankabanditka [31]3 years ago
7 0

Answer:

Ellipse

Domain:[-3,3]

Range:[-2,2]

Step-by-step explanation:

We are given that an equation

4x^2+9y^2=36

We have to find the type of conic section and find the domain and range of conic section.

Divide by 36 on both sides then, we get

\frac{x^2}{9}+\frac{y^2}{4}=1

\frac{x^2}{3^2}+\frac{y^2}{2^2}=1

It is an equation of ellipse.

Substitute y=0 then , we get

\frac{x^2}{9}=1

x^2=9

x=\pm 3

Domain :[-3,3]

Substitute x=0 then we get

\frac{y^2}{4}=1

y^2=4

y=\pm 2

Range=[-2,2]

Damm [24]3 years ago
4 0
4x^2+9y^2=36\\
\\
\frac{4x^2}{36}+\frac{9y^2}{36}=\frac{36}{36}\\
\\
\boxed{\frac{x^2}{9}+\frac{y^2}{4}=1}

This is a equation of a ellipse (0,0) centered

Domais: {x∈R/-3≤x≤3}
Range:{y∈R/-2≤y≤2}
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