Find an explicit formula for the arithmetic sequence 81,54, 2, 0... 1. a(n) = 27(n-1)
2. a(n) = 81 - (n + 27)
3. a(n) = 81 - 27(n)
4. a(n) = 81 - 27(n-1)

The description below represents function a and the table represents function b: function a the function is 5 more than 3 times x. function b x y −1 2 0 5 1 8 which statement is correct about the slope and y-intercept of the two functions? (1 point) their slopes are equal but y-intercepts are not equal. their slopes are not equal but y-intercepts are equal. both slopes and y intercepts are equal. neither slopes nor y-intercepts are equal.