Q. What is the center of the hyperbola x2−9y2−81=0?(_,_)
Move constant term:x2−9y2−81=0Move the constant term to the right side.x2−9y2=81
Convert to standard form:x2−9y2=81Convert the equation into standard form.Divide both sides of the equation by 81.81x2−819y2=8181x2/81−y2/9=1
Find center of hyperbola:81x2−9y2=1Find the center of the hyperbola.The standard form of the equation of a hyperbola centered at (h,k) is a2(x−h)2−b2(y−k)2=1.Here, the equation can be written as 81(x−0)2−9(y−0)2=1.Thus, h=0 and k=0.Center of the hyperbola: (0,0)
More problems from Find properties of hyperbolas from equations in general form