Answer: D) Yes, because each x value corresponds to exactly one y value
The table doesn't mention x, but usually x is in the left column. Since we don't have any repeated x values here, this means each input goes to exactly one output. So we have a function.
Visually if you plotted all the points, you'll see the graph passes the vertical line test.
The unit rate of miles per hour is 28
You can use the slope formula or just calculate

So for the first problem you run 3 units right and rise 5 units so

2. Notice the y axis goes by 2 units.

3.

4.

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