Question

The sound produced by touching each button on a touch-tone phone is described by y = sin 2πlt + sin 2πht where l and h are the low and high frequencies (cycles per seconD. in the figure shown.



Use a calculator to find the graph of the sound emitted by touching the 4 key in a [0, 0.01, 0.001] by [-2, 2, 1] viewing rectangle.

Answer 1

Which grade quest is this?

Answer 2

@AnswerMyQuestions

Answer 3

Do you have a graphing calculator?

Answer 4

No

Answer 5

But i am thinking the answer is D.

Answer 6

I am thinking you have to graph the function

Answer 7

you don't have to be rude..

Answer 8

I am saying it is a complicated function, and it's not obvious what the answer is by looking at a graph. You have to plot it and then see which choice matches.