Question: 2. Determine whether the graph of the function is concave up or concave down is the interval containing the given x-value. Verify graphically. a. f

2. Determine whether the graph of the function is concave up or concave down is the interval containing the given x-value. Verify graphically. a. f (x) = 2x2 +5x +4,x=0 b. f (x ) = - 8x2 + 4x - 1, x =-1 c. f (x) =x'+2x2 - 3x+1,x=0 d. f ( x ) = =, 7 2 , * = 2 3. Show that the function has a point of inflection in the interval containing the x-value. Verify graphically. a. f ( x) =x' + 12x, x = 0 b. f ( x ) = 2 +6x2 - x', x =2

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