### 1 Answer

Relevance

- stanschimLv 71 month ago
You can see the slope is negative since it slopes to the left.

The slope is -3/1 = -3 as can be seen from the ratio of rise to run.

Since it runs through the origin, there is no y-intercept.

y = -3x <==Answer

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Yep - you are right; it's not a "null" value.