Question

1.
If the distance between the points (k,2) and
(3,4) is 8 then k =
​

Answer 1

Answer:

k =( 6+-√240)/2

Explanation:

8^2 =(3-k)^2 + (4-2)^2

64 = 3^2+k^2-6k+4

= k^2-6k+13-64

=k^2-6k-51

a=1,b=-6,c=-51

k=(-b+-√b^2-4ac)/2a

=(6+-√36+204)/2

=( 6 +-√240)/2