Question

this graph is incorrect because: you cant go that fast. there is no negative slope involved. its too steep. vertical slope is undefined.

Explanation:

The slope of a line is calculated as $\frac{\text{rise}}{\text{run}}$. For a vertical line, the run (change in x - value) is 0. Division by zero is undefined in mathematics. So, a vertical slope is undefined, which can be a reason for a graph to be incorrect if it represents an impossible or non - well - defined relationship.

Answer:

Vertical slope is undefined.