2) Write an explicit formula for the sequence 2, 9, 16,
d(n) =

Figure lmno is located at l (1, 1), m (4, 4), n (7, 1), and o (4, −2). use coordinate geometry to best classify quadrilateral lmno.

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Given that abcd is a rhombus, what is the value of x?