Q. A hyperbola centered at the origin has vertices at (±4,0) and foci at (±9,0).Write the equation of this hyperbola.
Identify standard form: Identify the standard form of the equation for a hyperbola centered at the origin with horizontal transverse axis.Standard form of equation for a hyperbola with horizontal transverse axis: (x−h)2/a2−(y−k)2/b2=1 where (h,k) is the center of the hyperbola.
Determine center coordinates: Determine the values of h and k for the center of the hyperbola. Since the hyperbola is centered at the origin, h=0 and k=0.
Find semi-major axis: Find the value of the semi-major axis a. The vertices are given at (±4,0), which means a=4=2.
Find semi-minor axis: Find the value of the semi-minor axis b using the relationship c2=a2+b2, where c is the distance from the center to a focus.The foci are given at (±9,0), which means c=9=3.
Calculate value of b: Calculate the value of b using the relationship c2=a2+b2. Substitute a=2 and c=3 into the equation to find b. 32=22+b29=4+b2b2=9−4b2=5b=5
Write equation in standard form: Write the equation of the hyperbola in standard form after substituting the values of h, k, a, and b. Substitute h=0, k=0, a=2, and b=5 into (x−h)2/a2−(y−k)2/b2=1. x2/22−y2/(5)2=1k0
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