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

a jagged line plot that moves up and down between 30 and 5 as the x-value increases from 0 to 12

1

Linear

Nonlinear

Not a Function

graph of a diagonal line passing through the points (0,0) adn (2,2)

2

Linear

Nonlinear

Not a Function

v-shaped graph opening to the right with its vertex at the origin

3

Linear

Nonlinear

Not a Function

curve beginning at (0,0) sloping up and to the right through (4,2)

4

Linear

Nonlinear

Not a Function

graph: horizontal line

5

Linear

Nonlinear

Not a Function

u-shape curve passing through the points (-10, 100) (0,0) (10,100)

6

Linear

Nonlinear

Not a Function

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