Determine the average rate of change of the function on the given interval. Express your answer in exact simplest form. f(x)=2x²-1 Part 1 of 3 (a) on [-5, -2] The average rate of change of the function is Part 2 of 3 (b) on [0,3] The average rate of change of the function is Part 3 of 3 (c) on [4,6] The average rate of change of the function is O|O ㅁㅁ