Find the vertices of the hyperbola.
- 
= 1
A. (0, 3), (0, -3)
B. (-6, 0), (6, 0)
C. (0, 6), (0, -6)
D. (-3, 0), (3, 0)
Answer: B
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Provide an appropriate response.The time it takes a boat to travel a given distance downstream (with the current) can be calculated by dividing the distance by the sum of the speed of the boat and the speed of the current. Write an equation which calculates the time t it takes a boat moving at a speed r against a current c to travel a distance d. Solve your equation for r.
What will be an ideal response?
Determine the domain and range of the relation.{(-1, 9), (5, 5), (-7, -9), (-7, -6)}
A. Domain: {-1, -7, 5, 7}; Range: {9, -9, 5, -6} B. Domain: {-1, -7, 5, -7};Range: {9, -9, 5, -6} C. Domain: {-1, -7, 5}; Range: {9, -9, 5, -6} D. Domain: {9, -9, 5, -6}; Range: {-1, -7, 5}
Write the equation of the ellipse that has its center at the origin with focus at 
and vertex at 
. Express the equation in standard form.
What will be an ideal response?
Multiply and simplify.
? 
A. 
B. 
C. 
D. 