Answer:
The slope is undefined
Step-by-step explanation:
we know that
The formula to calculate the slope between two points is equal to
[tex]m=\frac{y2-y1}{x2-x1}[/tex]
we have
[tex](-5,4)\ (-5,7)[/tex]
Substitute the values
[tex]m=\frac{7-4}{-5+5}[/tex]
[tex]m=\frac{3}{0}[/tex] -----> is undefined
This is a vertical line
The slope is undefined