Respuesta :
Answer:
none of the solutions
Step-by-step explanation:
if k(x) = 2x-3x
We can substitute x=9 to find k(9)
k(9) = 2(9) -3(9)
= 18 -27
= -9
k(x)= 2x-3x
k(9)= 2•9-3•9
k(9)= 18-27
k(9)= -9
answer: none of the above
k(9)= 2•9-3•9
k(9)= 18-27
k(9)= -9
answer: none of the above