Let
f(x) = x+ 3 if x > 3
f(x) = x - 6 if -3 <= x <= 3
f(x) = 3x + b if x < -3.
Find a + b if the piecewise function is continuous (which means that its graph can be drawn without lifting your pencil from the paper).
Well for starters,
x-6 = 3x+b when x=-3
from that you can find b
There is no 'a' in those equations ??
