Decide whether each representation is of a linear function, a nonlinear function or is not a function at all!

graph of a line that passes through (0,4) and (6,0)

1

Linear

Nonlinear

Not a Function

u-shaped graph opening to the right

2

Linear

Nonlinear

Not a Function

A jagged graph, similar to the profile of a mountain, working its way down from 32 to 0 as x increases from 0 to 12

3

Linear

Nonlinear

Not a Function

v-shaped graph opening upward

4

Linear Function

Nonlinear

Not a Function

graph: diagonal line sloping upward

5

Linear

Nonlinear

Not a Function

graph: vertical line

6

Linear

Nonlinear

Not a Function

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