Let f(x) =x^2+Kx and g(x) = x+K. The graphs of f and g intersect at two distinct points. Find the value of K?
1 Answer
Apr 24, 2017
For graphs
Explanation:
As
and they will intersect where
or
or
As this has two distinct solutions,
the discriminant of quadratic equation must be greater than
or
or
As
Hence, for graphs