La fórmula de la pendiente de la recta es:
[tex]m = \frac{Y2 - Y1}{X2 - X1}[/tex]
Ejercicio 1:
[tex]m = \frac{5 - 1}{3-1} = \frac{4}{2} \\\\m = 2[/tex]
Ejercicio 2:
[tex]m = \frac{3 - 6}{8-5} = \frac{-3}{3} \\\\m = -1[/tex]
Ejercicio 3:
[tex]m = \frac{-4 - 1}{-2 +3} = \frac{-5}{1} \\\\m = -5[/tex]
Ejercicio 4:
[tex]m = \frac{4 - 1}{4 + 2} = \frac{3}{6} \\\\m = \frac{1}{2}[/tex]
