Is the nth term is 6 - 2n^2 what is the 4th term ?

please put the working out

What is the inverse of the function f(x)=4x+8

Explain why the function is discontinuous at the given number a. (select all that apply.) f(x) = 1 x + 1 a = −1 f(−1) is undefined. lim x→−1+ f(x) and lim x→−1− f(x) exist, but are not equal. lim x→−1 f(x) does not exist. f(−1) and lim x→−1 f(x) exist, but are not equal. none of the above

Describe the relationship between the angles of similar triangles and the sides of similar triangles