Very good!then i subbed a(a,b) into y=(-sqrt(b)/sqrt(a))x+ c to find c
i found c= b+sqrt(ab)
from there i tried to find the x-intercept(used y=0) an y-intercept(used x=0)
so i found that x-int=sqrt(ab)-a
from there i've tried to relate it to original equation somehow but cannot relate it so that the sum of the intercepts equals 1
Any help would be appreciated, thank you
With x= 0, and with y= 0, so , . That is not exactly what you got- notice the "+ a" in the y-intercept.
and you ought to be able to recognize that as a "perfect square": !
Now, use the fact that (a, b) is on the given curve so .