Question

given x = t + exp(at) , y = -t + exp (at) , find 'a' such that the parametric curve intersects x axis

Answer 1

just to copy from the chatbox :)

doesnt that happen when y=0?, parametric or not; the curve hits the x axis when y=0

Answer 2

-t + e^(at) = 0

e^at = t

at = ln|t|

a = ln|t|/t

as far as I can tell

Answer 3

the answer is .367 ...

Answer 4

i dont want to give out the solution, but its an exact answer

Answer 5

a= .367...

Answer 6

then what is the question? :)

Answer 7

find a when the parametric equation hits the x axis