11 Joel says, "For x 20, the expression
equivalent to
is he correct? Justify your response algebraically.

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

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.