Mathematics, 23.07.2019 02:10 becddjr
Find dy/dx and d2y/dx2, and find the slope and concavity (if possible) at the given value of the parameter. (if an answer does not exist, enter dne.) parametric equations point x = t , y = 7t − 2 t = 9
Answers: 1
the first derivative has a value of 7.![\dfrac{\mathrm d^2y}{\mathrm dx^2}=\dfrac{\mathrm d}{\mathrm dx}\left[\dfrac{\mathrm dy}{\mathrm dt}\dfrac{\mathrm dt}{\mathrm dx}\right]=\dfrac{\mathrm d\left(\frac{\mathrm dy}{\mathrm dt}\right)}{\mathrm dx}\dfrac{\mathrm dt}{\mathrm dx}+\dfrac{\mathrm dy}{\mathrm dt}\dfrac{\mathrm d^2t}{\mathrm dx^2}](/tpl/images/0121/7745/0faef.png)
, so we're left with
so the second derivative is 0 for all 
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Find dy/dx and d2y/dx2, and find the slope and concavity (if possible) at the given value of the par...
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