You have the following equation:
|n| = 8 the two vertical bras | | means absolute value of variable n
when you have an equation with an absolute value you consider that n could be negative or positive, because the absolute value of a number always results in a positive number. Then, n can be 8 or -8, because |-8| = |8| = 8. Hence, you have
n = ±8
No, there can not be negative amplitude because it is just the distance between the max and the midline or the minimum and the midline.
I see where you might be confused because for instance in the trig equation:
y = -3 sin (.5(x-

/2)) -1, there is a negative in front of the amplitude. However, when finding the amplitude, you take the absolute value of a.
Answer:
(0,5)
Step-by-step explanation:
Y intercept is where line touches y axis so x = 0.
(0,5) since it's only 5 and the others don't count.
Ahhhh simoooooooooooooooooon weeeeeeee
Answer:
54.4
Step-by-step explanation: