Question

how do I find the function of the 2nd graph?
http://img15.imageshack.us/img15/3803/ndy4.jpg

Answer 1

yes

Answer 2

I got, it can be solved by trig identity, tan(a+a) = tan(2a)

Answer 3

really? could u show us
i got a identitie but it dont works

Answer 4

the slope is tan a =1/2 so alpha =26,56 degrees .so
tan of 2*alpha =4/3

Answer 5

y intercept remains the same

Answer 6

4/3 is the slope

Answer 7

yes

Answer 8

from the 1st graph tan(a)=1/2
on the 2nd m = tan(2a) = tan(a+a) = [tan(a)+tan(a)] / 1-tan(a)xtan(a)
then plug tan(a)=1/2

Answer 9

that was the identitie
but i donw know why i plug 1 for the value of tan(a) that was the reason it dont works

Answer 10

plug 1/2 from the first slope