Write the explicit formula that represents the geometric sequene -2,8,-32,128

Well, is a geometric sequence, the first term's value is -2

to get the subsequent term's value, we'd multiply by "something" so-called the "common ratio"

well, if we simply just divide any of those values by the one before it, the quotient must be the "common ratio".

hmm say for exampl -32/8 = -4  <---- there's our common ratio

Absolute value graph shifted point 5 up