What does 25 feet Below sea level mean?

Which is a graph of a proportional relationship?

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.

This graph shows a portion of an odd function. use the graph to complete the table of values. x f(x) −2 −3 −4 −6 im sorry i cant get the graph up