Ming was planning a trip to Western Samoa.Before going, she did some research and learned that the exchange rate is 6 Tala for $
1 answer:
You might be interested in
If you plot the points given on a coordinate plane you see that this is a hyperbola that is is horizontal in nature, meaning it opens side to side, not up and down. We can determine the center of it by taking the point equidistant from the vertices, which is (4, 5), the h and k of our center, respectively. Also, the equation looks like this when it is horizontal: 
. a is the distance between the center and the vertices, so our a = 2, and c is the distance between the center and the foci, so our c = 3. We need to find b now, using Pythagorean's theorem. 
and 
. Now we have everything we need to rewrite the equation: 