Answer:
Problem 1 = -1
Problem 2 = undefined
Step-by-step explanation:
Slope: [tex]\frac{y^{2}-y^{1} }{x^{2}-x^{1} }[/tex]
Problem 1: (4, -5)(-2, 1)
Slope = [tex]\frac{1-(-5)}{-2-4}=\frac{1+5}{-2-4}=\frac{6}{-6}=-1[/tex]
Problem 2: (-4, 6)(-4, 8)
Slope: [tex]\frac{8-6}{-4-(-4)}=\frac{2}{0}[/tex] = Undefined
