Given f(x) and g(x) = kf(x), use the graph to determine the value of k.
Two lines labeled f of x and g of x. Line f of x passes through points negative 4, 0 and negative 3, 1. Line g of x passes through points negative 4, 0 and negative 3, negative 3.
A. 3
B. one third
C. negative one third
D. −3
