The equation that they have given is an absolute function meaning any outcome in this function will be POSITIVE no matter what.
For example
B(-6) = l-6 + 4l
B(-6) = l-2l or B(-6) = 2
YOUR ANSWER
B(-10) = l -10 + 4l
B(-10) = l-6l or B (-10) = 6
so therefore your answer is C. 6
When simplified, y=2(x+4)+5 equals y=2x+13
6n+5, because you just subtract 9n with 3n
