Find all values of x at which the tangent line to the curve y = x+1 has the y-intercept 2. Enter the exact answers in increasing order. If there is only one value of x, enter NA in the second answer area. If there are no values of x, enter NA twice. X Locate the critical points and identify which critical points are stationary points. f (x) = 2x4 - 16x2 +2 Enter your answers in increasing order. The critical point x = a stationary point. The critical point x i a stationary point. The critical point x i a stationary point. Use any method to find the relative extrema of the function f (x) = 12x-(x+ 1)3. If there is no relative maximum or minimum, indicate that using the check box. NOTE: Enter the exact answers. f has a relative maximum at the point (, ) No relative maximum f has a relative minimum at the point (, ) No relative minimum