Which is the recursive formula for the following Geometric Sequence?
20, 80, 320, 1280,

A. f(1) = 20;
f(n) = f(n-1). 4, for n > 2
B. f(1) = 20;
mook
f(n) = f(n-1) - 2, for n > 2
ook
mily
C. f (1) – 20;
f(n) = f (n − 1). (1), forn > 2
D. f(1) = 20;
f(n) = f(n-1). 41-1, for n > 2
HEL

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.