Find the amplitude of y = -4 sin x.

The amplitude is 4.

Step-by-step explanation:

Given the form of the sine function:

Where is the amplitude, is the period and "k" is the vertical shift of the wave.

You know that, in the sine function given ( ), you can identify the amplitude and the period. These are:

Therefore, the amplitude of   is:

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.

6(h+1)/2=a

a=area

step-by-step explanation:

its the same thing as a square or rectangle but after multiplying two sides you need to divide it by two.