MCQOPTIONS
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MCQOPTIONS
| 1. |
Which of the following is not correct regarding signs of derivatives? |
| A. | If \(\frac{dy}{dx}>0,\) then the curve is increasing in [a, b] |
| B. | If \(\frac{dy}{dx}<0,\) then the curve is increasing in [a, b] |
| C. | If \(\frac{d^2 x}{dy^2}>0, \) then curve is convex and concave upward (holds water) |
| D. | If \(\frac{d^2 x}{dy^2}>0, \) then curve is concave downward (spills water) |
| Answer» C. If \(\frac{d^2 x}{dy^2}>0, \) then curve is convex and concave upward (holds water) | |