Answer:
C. 4
Step-by-step explanation:
Use the slope formula:
[tex]m=\frac{y2}{x2} -\frac{y1}{x1}[/tex]
m = the slope.
Substitute the values into the formula:
[tex]\frac{9}{3} -\frac{-7}{-1} =\frac{?}{?}[/tex]
Solve:
[tex]\frac{9}{3} -\frac{-7}{-1} =\frac{16}{4}[/tex]
Simplify 16/4:
[tex]\frac{16/4}{4/4} =\frac{4}{1}=4[/tex]
