Question

Which of the following describes a linear function? (1 point)


It is V shaped and passes through the origin.
It is a straight line in one portion and a curve in another portion.
Its y-values decrease at a constant rate as its x-value increases.
Its y-values increase at a nonconstant rate as its x-value increases.

Answer 1

@Kit_Kat_Nat_<3
@satellite73

Answer 2

Its y-values decrease at a constant rate as its x-value increases.

Answer 3

got picture?

Answer 4

not really necessary
only the third one describes a function

Answer 5

but you could also do the "vertical line test" on them
and that one that passes it, is a function http://www.mathwarehouse.com/algebra/relation/vertical-line-test.php