For a given function, the graph of x and y is shown below. which of the following statements are true? check all that apply.
graph on coordinate plane with line passing through (negative 1, negative 3), (0, 0), (1, 3) and beyond
the variable y varies directly with x.
the constant of variation is 3 .
the constant of variation is 1.
the variable y does not vary directly with x.