Graph (x^2)/25+(y^2)/9=1
Problem
Solution
Identify the type of conic section. Since the equation is in the form
(x2)/(a2)+(y2)/(b2)=1 with positive coefficients, it represents an ellipse centered at the origin(0,0) Determine the lengths of the semi-axes. Here,
a2=25 andb2=9 Taking the square roots givesa=5 andb=3 Locate the vertices on the x-axis. Since
a=5 is under thex2 term, the horizontal vertices are at(5,0) and(−5,0) Locate the vertices on the y-axis. Since
b=3 is under they2 term, the vertical co-vertices are at(0,3) and(0,−3) Calculate the foci using the relation
c2=a2−b2
Identify the foci coordinates. The foci are located along the major axis (the x-axis) at
(4,0) and(−4,0) Sketch the graph by drawing a smooth curve through the four vertices
(5,0) (−5,0) (0,3) and(0,−3)
Final Answer
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