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Mathematics 19 Online
OpenStudy (anonymous):

calc help

OpenStudy (anonymous):

OpenStudy (perl):

We can determine which one is true by using an example. We want a function that is positive, decreasing, and concave up on [a,b]. y = 1/x satisfies these conditions on [1,2]

OpenStudy (anonymous):

how is it positive and decreasing

OpenStudy (perl):

1/x > 0 on [1,2] https://www.desmos.com/calculator/h71in7kfem

OpenStudy (anonymous):

what does the answer choice mean by left and right sum?

zepdrix (zepdrix):

|dw:1461109032543:dw|

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