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

1

graph: diagonal line sloping downward🖼Show image

Linear

Non-Linear

Not a Function

2

u-shaped graph opening to the right🖼Show image

Linear

Non-Linear

Not a Function

3

jagged graph, similar to the profile of a mountain🖼Show image

Linear

Non-Linear

Not a Function

4

v-shaped graph opening upward🖼Show image

Linear Function

Non-Linear Function

Not a Function

5

graph: diagonal line sloping upward🖼Show image

Linear

Non-Linear

Not a Function

6

graph: vertical line🖼Show image

Linear

Non-Linear

Not a Function

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