What are linear equations? could'ya explain too me, ? ! and how do you see what graph is a proportional relationship?

A linear equation is: an equation between two variables that gives a straight line when plotted on a graph.

I hope it helps at all

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.