Answer:
Amplitude is 3
Step-by-step explanation:
in y=-3sin5x
the number in front of sign is always the amplitude. Its not negative 3 because the negative simply means it reflects across the x-axis
ANSWER
The amplitude is 3
EXPLANATION
The amplitude of a periodic function is the distance from the midline of its graph to the peak.
The given function is:
[tex]y = - 3 \sin(5x) [/tex]
This function is of the form:
[tex]y = a \: \sin(bx) [/tex]
The of this function is
[tex] |a| [/tex]
By comparing the two functions, we have a=-3.
Therefore the amplitude of the given function is
[tex] | - 3| = 3[/tex]
