Answer
See the graph below:
Work Step by Step
As seen in the graph:
a. As $ A $ increases through positive values, the amplitudes of the curves increase.
b. A Negative A-values will flip the curve around the x-axis.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.