- #1
hancyu
- 57
- 0
this is the question...
For what values of k is the graph of the equation x^2 + y^2 +2x-4y+26=k^2 - 4k
a. a circle
b. a point
c. an empty set
i think i should change the equation to this form...(x+1)^2+(y-2)^2=k^2 - 4k - 29
then what?
For what values of k is the graph of the equation x^2 + y^2 +2x-4y+26=k^2 - 4k
a. a circle
b. a point
c. an empty set
i think i should change the equation to this form...(x+1)^2+(y-2)^2=k^2 - 4k - 29
then what?