Graph the pair of functions
y = x sin(x)
y = 3 sin(x)
using the following settings:
a. Are the x-intercepts the same for both graphs?
b. What is the amplitude for y = 3 sin fx)?
c. What do you notice about the amplitude of y = x sinfx)?
d. What effect does A being a variable have on the graph of y = A sin x?
Use the same settings to graph the functions y = x sinfx), y = x, and y = ֊x.
e. What do you notice about the two linear graphs?
f. What do you know about the sine function that would allow you to anticipate that thetwolinesy = xandy = - x would be boundary graphs for y = xsin(x)?
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