WILL MARK BRAINLIEST 1. If a4 = -320 and r= -4 find a1
2. If a1= 3645 and a6 =15 find a3
3. Given the geometric sequence find s8 (3,-12,48,-192...)
4. Given the geometric sequence find s25 (1,5/3,7/3,3,11/3...)

on your paper it doesn't say the answer but the the answer is altitude

step-by-step explanation:

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.