Question

solution check and help

Answer 1

i got the slope as -1 and concavity as -2sqrt(2)

Answer 2

the problem asks to sketch the parametric curve familiar from trigonometry? i dont know how to sketch it

Answer 3

and would also like to know if my slope and concavity is right

Answer 4

http://i50.tinypic.com/vrdok5.png sorry dint upload right

Answer 5

i think i also found the sketch, i get a circle with a diameter 2 revolving around the origin

Answer 6

and the lin y=-x+sqrt(2) coming in contact with that circle at around .7/.7