What are the foci of the hyperbola represented by the equation 16x2−25y2=1?Choose 1 answer:(A) (3,0) and (−3,0)(B) (41,0) and (−41,0)(C) (0,3) and (0,−3)(D) (0,41) and (0,−41)
Q. What are the foci of the hyperbola represented by the equation 16x2−25y2=1?Choose 1 answer:(A) (3,0) and (−3,0)(B) (41,0) and (−41,0)(C) (0,3) and (0,−3)(D) (0,41) and (0,−41)
Equation of the hyperbola: The given equation is of a hyperbola in the standard form (a2x2)−(b2y2)=1, where a2 is under the x2 term and b2 is under the y2 term. For a hyperbola centered at the origin with a horizontal transverse axis, the foci are located at (±c,0), where c is found using the equation c2=a2+b2.
Identifying a2 and b2: Identify the values of a2 and b2 from the given equation. Here, a2=16 and b2=25.
Calculating c2: Calculate the value of c2 using the equation c2=a2+b2. Substituting the identified values gives us c2=16+25.
Finding the value of c: Perform the addition to find c2. So, c2=41.
Locating the foci: Find the value of c by taking the square root of c2. Therefore, c=41.
Locating the foci: Find the value of c by taking the square root of c2. Therefore, c=41.The foci of the hyperbola are at (±c,0). Substituting the value of c, we get the foci at (41,0) and (−41,0).