Let f(x) = x - 3 and q(x) = bx +1. If f(q(1)) = -3, what is b?
q(1) = b(1) + 1
f(q(1)) = -3 means that we have
[ b(1) + 1] - 3 = -3
b + 1 - 3 = -3
b - 2 = -3 add 2 to both sides
b = -1