slope = -1/2
Explanation:Points: (0,1) and (4,-1)
Using the slope formula:
[tex]m\text{ = }\frac{y_2-y_1}{x_2-x_1}[/tex][tex]\begin{gathered} x_1=0,y_1=1,x_2=4,y_2\text{ = -1} \\ m\text{ = slope =}\frac{-1-1}{4-0} \end{gathered}[/tex][tex]\begin{gathered} \text{slope =}\frac{-2}{4} \\ \text{slope = -1/2} \end{gathered}[/tex]