If all linear relationships can be shown as points on a graph, does that mean all graphs are linear?

Beneath each graph write linear or not linear.

A horizontal line crossing the y-axis at 48🖼Show image B upside-down v-shaped graph with its vertex at the origin🖼Show image C two curves meeting at the origin🖼Show image

D a diagonal line, sloping downward from left to right🖼Show image E a diagonal line, sloping updward from left to right🖼Show image F a u-shaped graph, opening upward, with its vertex at the origin🖼Show image

What do you Notice? What do you Wonder?

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