Find the foci for the ellipse given by the equation: 9x^2 + 25y^2 = 225
a. (5, 0) and (-5, 0) c. (0, 3) and (0, -3) b. (4, 0) and (-4, 0) d. (0, 0) and (-1, 0)

Asequence has its first term equal to 4, and each term of the sequence is obtained by adding 2 to the previous term. if f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence? (1 point) f(1) = 2 and f(n) = f(n − 1) + 4; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2n; n > 1 f(1) = 2 and f(n) = f(n − 1) + 4n; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2; n > 1 i will award !