SOLUTION: Describe what's changing in graph {{{ a }}} and {{{ b }}} corresponding to the changes found in each constant.
Graph: https://s30.postimg.org/dmvhvs8sh/Graph_A_and_B.png
Thanks.
These are graphs of
f(x) = a*sin(bx+c)+d
In the first graph the amplitude "a" is varying,
but the period "" is constant.
In the second graph the period "" is changing
but the amplitude "a" is constant.
Edwin