The given function is g(x)=−x2+8x+24 g(x) = -x^{2} + 8x + 24 g(x)=−x2+8x+24, and the interval over which the average rate of change is to be calculated is 2≤x≤10 2 \leq x \leq 10 2≤x≤10.
Substitute x=2 x = 2 x=2 into the function: g(2)=−(2)2+8(2)+24=−4+16+24=36. g(2) = -(2)^{2} + 8(2) + 24 = -4 + 16 + 24 = 36. g(2)=−(2)2+8(2)+24=−4+16+24=36.
Substitute x=10 x = 10 x=10 into the function: g(10)=−(10)2+8(10)+24=−100+80+24=4. g(10) = -(10)^{2} + 8(10) + 24 = -100 + 80 + 24 = 4. g(10)=−(10)2+8(10)+24=−100+80+24=4.
The average rate of change is given by: Average rate of change=g(10)−g(2)10−2=4−368=−328=−4. \text{Average rate of change} = \frac{g(10) - g(2)}{10 - 2} = \frac{4 - 36}{8} = \frac{-32}{8} = -4. Average rate of change=10−2g(10)−g(2)=84−36=8−32=−4.
−4\boxed{-4}−4
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