Introduction point (2, k+ 1), k+ 1=2k/(-2)
-2k-2=2k
-k- 1=k k=- 1/2
1. into k=- 1/2, y =1/x.
2. Use dot (-1, m) m = 1/(- 1), m =- 1.
3. G (1/2,2), bring in x= 1/2 to get y=2, so G is on the image.
Y=kx and y=(5-k)/x intersect (2, y), that is to say, when x=2, the y values of the two functions are equal, so there is.
Kx=(5-k)/x where x=2 brings 2k=(5-k)/2.
4k=5-k k= 1
So y=x y=4/x are these two functions.
1. To make the values of y equal, there are x = 4/x×2 = 4, x = 2 or x=-2.
Bring in two x's to get y 1=2 y2=-2, that is, the intersection points are (2,2) and (-2,2).
2 .. here are two points on y = 4/x.
Y 1=4/X 1 Y2=4/X2
Because x 1
I think it's clear that it doesn't need the patience of a master to finish it ~ ~:)