Graph (x^2)/36+(y^2)/20=1
Problem
Solution
Identify the type of conic section. Since the equation is in the form
(x2)/(a2)+(y2)/(b2)=1 with positive denominators, it is an ellipse centered at the origin(0,0) Determine the lengths of the semi-axes. Here
a2=36 andb2=20 Taking the square roots givesa=6 andb=√(,20)=2√(,5)≈4.47 Locate the vertices and co-vertices. Since
a>b the major axis is horizontal. The vertices are at(±6,0) and the co-vertices are at(0,±2√(,5)) Calculate the foci using the formula
c2=a2−b2
The foci are located at
Sketch the graph by plotting the center
(0,0) the vertices(±6,0) and the co-vertices(0,±4.47) then drawing a smooth curve through these points.
Final Answer
Want more problems? Check here!