QUESTION 22 Find the largest open intervals where the function is concave upward. f( x ) = x 2 + 2x+1 O (-1, = ) O (-60, Be ) O (-0, -1 ) O None QUESTION 23 Find the largest open intervals where the function is concave upward. f ( x ) = -3x 2 + 18x + 16 O None O (-, 3 ) O (3, 3 ) O ( -BE , = ) QUESTION 24 Find the largest open intervals where the function is concave upward. f(x) = 4x 3 - 45x 2 + 150x O 15 O 15 O 15) - 09 - O 15 QUESTION 25 Find the requested value of the second derivative of the function. f(x) = 8x 4 - 4x 2 + 6; Find f"(0). O0 -6 O -8 0 6QUESTION 26 Find the requested value of the second derivative of the function. f(x) = 7x 2 + 6x - 3; Find f"(0). O -14 07 O 14 QUESTION 27 Find the requested value of the second derivative of the function. f(x) = - X x +1 : Find f"(2). OO O 2 27 O w/N /- O