Answer:
[tex]-2[/tex]
Step-by-step explanation:
[tex]k(x)=-2x\\k'(x)=-2\\k'(3)=-2[/tex]
What I basically did here was take the derivative of the function to find the slope of the function at any given point. Since -2x has a slope of -2, no matter what x is, the slope will always be -2.
