What type of conic section is given by the equation 4x^2+9y^2=36? What are its domain and range?
\(4x^2+9y^2=36\\
\\
\frac{4x^2}{36}+\frac{9y^2}{36}=\frac{36}{36}\\
\\
\boxed{\frac{x^2}{9}+\frac{y^2}{4}=1}\)
This is a equation of a ellipse (0,0) centered
Domais: {x∈R/-3≤x≤3}
Range:{y∈R/-2≤y≤2}
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]