Answer:
The slope of the line is the inverse of the answer he gave, 5/2.
Step-by-step explanation:
In this case, the slope equation for a line is:
[tex]m\frac{y2-y1}{x2-x1}[/tex]
Analyzing the description, we can appreciate that Billy the x values by the y values, that is incorrect, because the equation is as shown before. So the slope of the line is the inverse of the answer he gave, 5/2.