If the function y = (2k + 1) x + B is a decreasing function on a real number set, then () A. k>-12B. k<-12C. b>0D. b<0

If the function y = (2k + 1) x + B is a decreasing function on a real number set, then () A. k>-12B. k<-12C. b>0D. b<0

If the function y = (2k + 1) x + B is a decreasing function on the real number set, then 2K + 1 < 0, the solution is k < - 12, so B is chosen