Find the equation of the hyperbola with vertices (4, 0), (-4, 0) and focus (7, 0).
a. x^2/33 - y^2/16 = 1
b. y^2/16 - x^2/33 = 1
c. x^2/16 - y^33 = 1
d. x^2/16 - y^2/33 = 1
e. none of these
Solve the system of equations
{ y^2 + x^2 = 17 y=4x^2
a. (2, 8), (-2, 8)
b. (1, 4), (-1, 4)
c. (1, -4), (-1, 4)
d. (2, 8)
e. no solution
