If $f(x)$ is decreasing and concave down on $-10\frac{f(10)-f(7)}{10+7}$ B) $ f(15)-f(-8)15+8$ C) $f(-4)-f(2)0$ D) $f(8)f(-5)+\frac{8+5}{10-8}(f(10)-f(8))$

Name: If $f(x)$ is decreasing and concave down on $-10 \frac{f(10)-f(7)}{10+7}$ B) $ f(15)-f(-8)>15+8$ C) $f(-4)-f(2)>0$ D) $f(8)>f(-5)+\frac{8+5}{10-8}(f(10)-f(8))$
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Question

If $f(x)$ is decreasing and concave down on $-10\frac{f(10)-f(7)}{10+7}$ B) $ f(15)-f(-8)>15+8$ C) $f(-4)-f(2)>0$ D) $f(8)>f(-5)+\frac{8+5}{10-8}(f(10)-f(8))$

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The Answer of If $f(x)$ is decreasing and concave down on $-10\frac{f(10)-f(7)}{10+7}$ B) $ f(15)-f(-8)>15+8$ C) $f(-4)-f(2)>0$ D) $f(8)>f(-5)+\frac{8+5}{10-8}(f(10)-f(8))$

If f(x)f(x)f(x) Is Decreasing and Concave Down On −10<x<10-10<x<10−10<x<10 , Which of the Following Must Be True

If $f(x)$ Is Decreasing and Concave Down On $-10<x<10$ , Which of the Following Must Be True