Finding a Derivative dy/dx

\fFinding Slope and Concavity In Exercises 9, 10, 11, 12, 13, 14, 15, 16, 17, and 18, find dy/de and day/dx2, and find the slope and concavity (if possible) at the given value of the parameter. 9. Parametric Equations Parameter x = 4t, y = 3t - 2 t = 3 Answer + 10. Parametric Equations Parameter x = vt, y =3t - 1 t = 1 11. Parametric Equations Parameter =t+1, y=t'+ 3t t = -2 Answer + 12, Parametric Equations Parameter x =t' + 5t +4, y=4t t= 0 13. Parametric Equations Parameter cc = 4 cos 0, y = 4 sin 0 0 = A Answer + 14. Parametric Equations Parameter = cos 0, y = 3 sin 0 0 = 0 15. Parametric Equations Parameter x = 2 + sec 0, y = 1+ 2 tan 0 0 = 3 Answer + 16. Parametric Equations Parameter x= vt, y = vt-I t = 518, Parametric Equations Parameter x = 0 - sin 0, y =1 - cos 034. x=t+1, y = tz + 3t